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Vulnerability from cleanstart
Published
2026-08-13 12:10
Modified
2026-08-14 05:57
Summary
Security fixes in cfssl 1.5.0-r1
Details
Package cfssl version 1.5.0-r1 fixes 81 vulnerabilities: CVE-2020-29652, CVE-2021-31525, CVE-2021-33194, CVE-2021-38561, CVE-2021-43565...
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"package": {
"ecosystem": "Alpine",
"name": "cfssl"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0-r1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.5.0-r1"
]
}
],
"credits": [],
"database_specific": {},
"details": "Package cfssl version 1.5.0-r1 fixes 81 vulnerabilities: CVE-2020-29652, CVE-2021-31525, CVE-2021-33194, CVE-2021-38561, CVE-2021-43565...",
"id": "CLEANSTART-2026-NG63443",
"modified": "2026-08-14T05:57:28Z",
"published": "2026-08-13T12:10:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/cloudflare/cfssl"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes in cfssl 1.5.0-r1",
"upstream": [
"CVE-2020-29652",
"CVE-2021-31525",
"CVE-2021-33194",
"CVE-2021-38561",
"CVE-2021-43565",
"CVE-2021-44716",
"CVE-2022-27191",
"CVE-2022-27664",
"CVE-2022-30636",
"CVE-2022-32149",
"CVE-2022-41717",
"CVE-2022-41723",
"CVE-2023-3978",
"CVE-2023-39325",
"CVE-2023-44487",
"CVE-2023-45288",
"CVE-2023-48795",
"CVE-2024-45337",
"CVE-2024-45338",
"CVE-2025-22869",
"CVE-2025-22870",
"CVE-2025-22872",
"CVE-2025-47911",
"CVE-2025-47913",
"CVE-2025-47914",
"CVE-2025-58181",
"CVE-2025-58190",
"CVE-2026-25680",
"CVE-2026-25681",
"CVE-2026-27136",
"CVE-2026-33814",
"CVE-2026-39821",
"CVE-2026-39827",
"CVE-2026-39828",
"CVE-2026-39829",
"CVE-2026-39830",
"CVE-2026-39831",
"CVE-2026-39832",
"CVE-2026-39833",
"CVE-2026-39834",
"CVE-2026-39835",
"CVE-2026-42502",
"CVE-2026-42506",
"CVE-2026-42508",
"CVE-2026-46595",
"CVE-2026-46597",
"CVE-2026-46598",
"CVE-2026-46600",
"CVE-2026-56852",
"ghsa-3vm4-22fp-5rfm",
"ghsa-45gg-vh54-h5m9",
"ghsa-45x7-px36-x8w8",
"ghsa-4374-p667-p6c8",
"ghsa-5cgq-3rg8-m6cv",
"ghsa-5cv4-jp36-h3mw",
"ghsa-69cg-p879-7622",
"ghsa-78mq-xcr3-xm33",
"ghsa-89gr-r52h-f8rx",
"ghsa-8c26-wmh5-6g9v",
"ghsa-2wrh-6pvc-2jm9",
"ghsa-83g2-8m93-v3w7",
"ghsa-4v7x-pqxf-cx7m",
"ghsa-f5wc-c3c7-36mc",
"ghsa-f6x5-jh6r-wrfv",
"ghsa-gwc9-m7rh-j2ww",
"ghsa-h86h-8ppg-mxmh",
"ghsa-hcg3-q754-cr77",
"ghsa-j5w8-q4qc-rx2x",
"ghsa-jppx-rxg9-jmrx",
"ghsa-q4h4-gmj2-qvw2",
"ghsa-qpw4-5x99-6vjp",
"ghsa-qppj-fm5r-hxr3",
"ghsa-qxp5-gwg8-xv66",
"ghsa-rm3j-f69w-wqmq",
"ghsa-v778-237x-gjrc",
"ghsa-vgwf-h737-ff37",
"ghsa-vvgc-356p-c3xw",
"ghsa-vvpx-j8f3-3w6h",
"ghsa-w879-237q-wc7r",
"ghsa-x527-x647-q7gg",
"ghsa-xrjj-mj9h-534m"
]
}
GHSA-3VM4-22FP-5RFM
Vulnerability from github – Published: 2022-05-24 22:01 – Updated: 2023-07-12 20:45
VLAI
Summary
golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability
Details
A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers. An attacker can craft an authentication request message for the gssapi-with-mic method which will cause NewServerConn to panic via a nil pointer dereference if ServerConfig.GSSAPIWithMICConfig is nil.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/crypto"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20201216223049-8b5274cf687f"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-29652"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T00:29:05Z",
"nvd_published_at": "2020-12-17T05:15:00Z",
"severity": "HIGH"
},
"details": "A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers. An attacker can craft an authentication request message for the `gssapi-with-mic` method which will cause NewServerConn to panic via a nil pointer dereference if ServerConfig.GSSAPIWithMICConfig is nil.",
"id": "GHSA-3vm4-22fp-5rfm",
"modified": "2023-07-12T20:45:53Z",
"published": "2022-05-24T22:01:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29652"
},
{
"type": "WEB",
"url": "https://go-review.googlesource.com/c/crypto/+/278852"
},
{
"type": "WEB",
"url": "https://go.dev/cl/278852"
},
{
"type": "WEB",
"url": "https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2021-0227"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability"
}
GHSA-4374-P667-P6C8
Vulnerability from github – Published: 2023-10-11 20:35 – Updated: 2024-04-28 06:31
VLAI
Summary
HTTP/2 rapid reset can cause excessive work in net/http
Details
A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing.
With the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection.
This issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2.
The default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.17.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-39325"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2023-10-11T20:35:43Z",
"nvd_published_at": "2023-10-11T22:15:09Z",
"severity": "HIGH"
},
"details": "A malicious HTTP/2 client which rapidly creates requests and immediately resets them can cause excessive server resource consumption. While the total number of requests is bounded by the http2.Server.MaxConcurrentStreams setting, resetting an in-progress request allows the attacker to create a new request while the existing one is still executing. \n\nWith the fix applied, HTTP/2 servers now bound the number of simultaneously executing handler goroutines to the stream concurrency limit (MaxConcurrentStreams). New requests arriving when at the limit (which can only happen after the client has reset an existing, in-flight request) will be queued until a handler exits. If the request queue grows too large, the server will terminate the connection. \n\nThis issue is also fixed in golang.org/x/net/http2 for users manually configuring HTTP/2.\n\nThe default stream concurrency limit is 250 streams (requests) per HTTP/2 connection. This value may be adjusted using the golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams setting and the ConfigureServer function.",
"id": "GHSA-4374-p667-p6c8",
"modified": "2024-04-28T06:31:25Z",
"published": "2023-10-11T20:35:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39325"
},
{
"type": "WEB",
"url": "https://github.com/golang/go/issues/63417"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NG7IMPL55MVWU3LCI4JQJT3K2U5CHDV7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ODBY7RVMGZCBSTWF2OZGIZS57FNFUL67"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OXGWPQOJ3JNDW2XIYKIVJ7N7QUIFNM2Q"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJCUNGIQDUMZ4Z6HWVYIMR66A35F5S74"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QF5QSYAOPDOWLY6DUHID56Q4HQFYB45I"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QXOU2JZUBEBP7GBKAYIJRPRBZSJCD7ST"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R3UETKPUB3V5JS5TLZOF3SMTGT5K5APS"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULQQONMSCQSH5Z5OWFFQHCGEZ3NL4DRJ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTT7DG3QOF5ZNJLUGHDNLRUIN6OWZARP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W2LZSWTV4NV4SNQARNXG5T6LRHP26EW2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WCNCBYKZXLDFGAJUB7ZP5VLC3YTHJNVH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XFOIBB4YFICHDM7IBOP7PWXW3FX4HLL2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XTNLSL44Y5FB6JWADSZH6DCV4JJAAEQY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJWHBLVZDM5KQSDFRBFRKU5KSSOLIRQ4"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YRKEXKANQ7BKJW2YTAMP625LJUJZLJ4P"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZSVEMQV5ROY5YW5QE3I57HT3ITWG5GCV"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2023-2102"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202311-09"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20231110-0008"
},
{
"type": "WEB",
"url": "https://go.dev/cl/534215"
},
{
"type": "WEB",
"url": "https://go.dev/cl/534235"
},
{
"type": "WEB",
"url": "https://go.dev/issue/63417"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/iNNxDTCjZvo/m/UDd7VKQuAAAJ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OVW5V2DM5K5IC3H7O42YDUGNJ74J35O"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SZN67IL7HMGMNAVLOTIXLIHUDXZK4LH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3WJ4QVX2AMUJ2F2S27POOAHRC4K3CHU4"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5RSKA2II6QTD4YUKUNDVJQSRYSFC4VFR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVZDNSMVDAQJ64LJC5I5U5LDM5753647"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CLB4TW7KALB3EEQWNWCN7OUIWWVWWCG2"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2BBIDR2ZMB3X5BC7SR4SLQMHRMVPY6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ECRC75BQJP6FJN2L7KCKYZW4DSBD7QSD"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FTMJ3NJIDAZFWJQQSP3L22MUFJ3UP2PT"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSY7SXFFTPZFWDM6XELSDSHZLVW3AHK7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HZQIELEIRSZUYTFFH5KTH2YJ4IIQG2KE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPWCNYB5PQ5PCVZ4NJT6G56ZYFZ5QBU6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KSEGD2IWKNUO3DWY4KQGUQM5BISRWHQE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L5E5JSJBZLYXOTZWXHJKRVCIXIHVWKJ6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MZQYOOKHQDQ57LV2IAG6NRFOVXKHJJ3Z"
},
{
"type": "PACKAGE",
"url": "golang.org/x/net"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "HTTP/2 rapid reset can cause excessive work in net/http"
}
GHSA-45GG-VH54-H5M9
Vulnerability from github – Published: 2026-06-25 22:14 – Updated: 2026-07-20 12:32
VLAI
Summary
golang.org/x/crypto vulnerable to invoking bypass of certificate restrictions
Details
When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.
Severity
6.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/crypto"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.52.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-39828"
],
"database_specific": {
"cwe_ids": [
"CWE-281",
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-25T22:14:38Z",
"nvd_published_at": "2026-05-22T04:16:22Z",
"severity": "MODERATE"
},
"details": "When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.",
"id": "GHSA-45gg-vh54-h5m9",
"modified": "2026-07-20T12:32:55Z",
"published": "2026-06-25T22:14:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39828"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40119"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40262"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40945"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40969"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40972"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40974"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41019"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41031"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41036"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41055"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41066"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-39828"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480687"
},
{
"type": "PACKAGE",
"url": "https://cs.opensource.google/go/x/crypto"
},
{
"type": "WEB",
"url": "https://go.dev/cl/781621"
},
{
"type": "WEB",
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"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/crypto vulnerable to invoking bypass of certificate restrictions"
}
GHSA-45X7-PX36-X8W8
Vulnerability from github – Published: 2023-12-18 19:22 – Updated: 2026-05-13 15:24
VLAI
Summary
Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin
Details
Summary
Terrapin is a prefix truncation attack targeting the SSH protocol. More precisely, Terrapin breaks the integrity of SSH's secure channel. By carefully adjusting the sequence numbers during the handshake, an attacker can remove an arbitrary amount of messages sent by the client or server at the beginning of the secure channel without the client or server noticing it.
Mitigations
To mitigate this protocol vulnerability, OpenSSH suggested a so-called "strict kex" which alters the SSH handshake to ensure a Man-in-the-Middle attacker cannot introduce unauthenticated messages as well as convey sequence number manipulation across handshakes.
Warning: To take effect, both the client and server must support this countermeasure.
As a stop-gap measure, peers may also (temporarily) disable the affected algorithms and use unaffected alternatives like AES-GCM instead until patches are available.
Details
The SSH specifications of ChaCha20-Poly1305 (chacha20-poly1305@openssh.com) and Encrypt-then-MAC (*-etm@openssh.com MACs) are vulnerable against an arbitrary prefix truncation attack (a.k.a. Terrapin attack). This allows for an extension negotiation downgrade by stripping the SSH_MSG_EXT_INFO sent after the first message after SSH_MSG_NEWKEYS, downgrading security, and disabling attack countermeasures in some versions of OpenSSH. When targeting Encrypt-then-MAC, this attack requires the use of a CBC cipher to be practically exploitable due to the internal workings of the cipher mode. Additionally, this novel attack technique can be used to exploit previously unexploitable implementation flaws in a Man-in-the-Middle scenario.
The attack works by an attacker injecting an arbitrary number of SSH_MSG_IGNORE messages during the initial key exchange and consequently removing the same number of messages just after the initial key exchange has concluded. This is possible due to missing authentication of the excess SSH_MSG_IGNORE messages and the fact that the implicit sequence numbers used within the SSH protocol are only checked after the initial key exchange.
In the case of ChaCha20-Poly1305, the attack is guaranteed to work on every connection as this cipher does not maintain an internal state other than the message's sequence number. In the case of Encrypt-Then-MAC, practical exploitation requires the use of a CBC cipher; while theoretical integrity is broken for all ciphers when using this mode, message processing will fail at the application layer for CTR and stream ciphers.
For more details see https://terrapin-attack.com.
Impact
This attack targets the specification of ChaCha20-Poly1305 (chacha20-poly1305@openssh.com) and Encrypt-then-MAC (*-etm@openssh.com), which are widely adopted by well-known SSH implementations and can be considered de-facto standard. These algorithms can be practically exploited; however, in the case of Encrypt-Then-MAC, we additionally require the use of a CBC cipher. As a consequence, this attack works against all well-behaving SSH implementations supporting either of those algorithms and can be used to downgrade (but not fully strip) connection security in case SSH extension negotiation (RFC8308) is supported. The attack may also enable attackers to exploit certain implementation flaws in a man-in-the-middle (MitM) scenario.
Severity
5.9 (Medium)
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"aliases": [
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],
"database_specific": {
"cwe_ids": [
"CWE-345",
"CWE-354"
],
"github_reviewed": true,
"github_reviewed_at": "2023-12-18T19:22:09Z",
"nvd_published_at": "2023-12-18T16:15:10Z",
"severity": "MODERATE"
},
"details": "### Summary\n\nTerrapin is a prefix truncation attack targeting the SSH protocol. More precisely, Terrapin breaks the integrity of SSH\u0027s secure channel. By carefully adjusting the sequence numbers during the handshake, an attacker can remove an arbitrary amount of messages sent by the client or server at the beginning of the secure channel without the client or server noticing it.\n\n### Mitigations\n\nTo mitigate this protocol vulnerability, OpenSSH suggested a so-called \"strict kex\" which alters the SSH handshake to ensure a Man-in-the-Middle attacker cannot introduce unauthenticated messages as well as convey sequence number manipulation across handshakes.\n\n**Warning: To take effect, both the client and server must support this countermeasure.** \n\nAs a stop-gap measure, peers may also (temporarily) disable the affected algorithms and use unaffected alternatives like AES-GCM instead until patches are available.\n\n### Details\n\nThe SSH specifications of ChaCha20-Poly1305 (chacha20-poly1305@openssh.com) and Encrypt-then-MAC (*-etm@openssh.com MACs) are vulnerable against an arbitrary prefix truncation attack (a.k.a. Terrapin attack). This allows for an extension negotiation downgrade by stripping the SSH_MSG_EXT_INFO sent after the first message after SSH_MSG_NEWKEYS, downgrading security, and disabling attack countermeasures in some versions of OpenSSH. When targeting Encrypt-then-MAC, this attack requires the use of a CBC cipher to be practically exploitable due to the internal workings of the cipher mode. Additionally, this novel attack technique can be used to exploit previously unexploitable implementation flaws in a Man-in-the-Middle scenario.\n\nThe attack works by an attacker injecting an arbitrary number of SSH_MSG_IGNORE messages during the initial key exchange and consequently removing the same number of messages just after the initial key exchange has concluded. This is possible due to missing authentication of the excess SSH_MSG_IGNORE messages and the fact that the implicit sequence numbers used within the SSH protocol are only checked after the initial key exchange.\n\nIn the case of ChaCha20-Poly1305, the attack is guaranteed to work on every connection as this cipher does not maintain an internal state other than the message\u0027s sequence number. In the case of Encrypt-Then-MAC, practical exploitation requires the use of a CBC cipher; while theoretical integrity is broken for all ciphers when using this mode, message processing will fail at the application layer for CTR and stream ciphers.\n\nFor more details see [https://terrapin-attack.com](https://terrapin-attack.com). \n\n### Impact\n\nThis attack targets the specification of ChaCha20-Poly1305 (chacha20-poly1305@openssh.com) and Encrypt-then-MAC (*-etm@openssh.com), which are widely adopted by well-known SSH implementations and can be considered de-facto standard. These algorithms can be practically exploited; however, in the case of Encrypt-Then-MAC, we additionally require the use of a CBC cipher. As a consequence, this attack works against all well-behaving SSH implementations supporting either of those algorithms and can be used to downgrade (but not fully strip) connection security in case SSH extension negotiation (RFC8308) is supported. The attack may also enable attackers to exploit certain implementation flaws in a man-in-the-middle (MitM) scenario.",
"id": "GHSA-45x7-px36-x8w8",
"modified": "2026-05-13T15:24:57Z",
"published": "2023-12-18T19:22:09Z",
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"url": "https://github.com/connectbot/sshlib/compare/2.2.21...2.2.22"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-45x7-px36-x8w8"
},
{
"type": "WEB",
"url": "https://github.com/TeraTermProject/teraterm/releases/tag/v5.1"
},
{
"type": "WEB",
"url": "https://github.com/PowerShell/Win32-OpenSSH/releases/tag/v9.5.0.0p1-Beta"
},
{
"type": "WEB",
"url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.10\u0026id=10e09e273f69e149389b3e0e5d44b8c221c2e7f6"
},
{
"type": "WEB",
"url": "https://forum.netgate.com/topic/184941/terrapin-ssh-attack"
},
{
"type": "WEB",
"url": "https://filezilla-project.org/versions.php"
},
{
"type": "WEB",
"url": "https://crates.io/crates/thrussh/versions"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-915275.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-794697.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-769027.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-364175.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
},
{
"type": "WEB",
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1217950"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254210"
},
{
"type": "WEB",
"url": "https://bugs.gentoo.org/920280"
},
{
"type": "WEB",
"url": "https://arstechnica.com/security/2023/12/hackers-can-break-ssh-channel-integrity-using-novel-data-corruption-attack"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/cve-2023-48795"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KEOTKBUPZXHE3F352JBYNTSNRXYLWD6P"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I724O3LSRCPO4WNVIXTZCT4VVRMXMMSG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HYEDEXIKFKTUJIN43RG4B7T5ZS6MHUSP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7EYCFQCTSGJXWO3ZZ44MGKFC5HA7G3Y"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CHHITS4PUOZAKFIUBQAQZC7JWXMOYE4B"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C3AFMZ6MH2UHHOPIWT5YLSFV3D2VB3AC"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BL5KTLOSLH2KHRN4HCXJPK3JUVLDGEL6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APYIXIQOVDCRWLHTGB4VYMAUIAQLKYJ3"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6Y74KVCPEPT4MVU3LHDWCNNOXOE5ZLUR"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YQLUQWLIHDB5QCXQEX7HXHAWMOKPP5O"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3JIMLVBDWOP4FUPXPTB4PGHHIOMGFLQE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CAYYW35MUTNO65RVAELICTNZZFMT2XS"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33XHJUB6ROFUOH2OQNENFROTVH6MHSHA"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00032.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00014.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00013.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00017.html"
},
{
"type": "WEB",
"url": "https://jadaptive.com/important-java-ssh-security-update-new-ssh-vulnerability-discovered-cve-2023-48795"
},
{
"type": "WEB",
"url": "https://help.panic.com/releasenotes/transmit5"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/qA3XtxvMUyg"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/-n5WqVC18LQ"
},
{
"type": "WEB",
"url": "https://go.dev/issue/64784"
},
{
"type": "WEB",
"url": "https://go.dev/cl/550715"
},
{
"type": "WEB",
"url": "https://gitlab.com/libssh/libssh-mirror/-/tags"
},
{
"type": "WEB",
"url": "https://github.com/warp-tech/russh/releases/tag/v0.40.2"
},
{
"type": "PACKAGE",
"url": "https://github.com/warp-tech/russh"
},
{
"type": "WEB",
"url": "https://github.com/ronf/asyncssh/tags"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Mar/21"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/12/18/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/12/19/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/12/20/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/03/06/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/04/17/8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin"
}
GHSA-4V7X-PQXF-CX7M
Vulnerability from github – Published: 2024-04-04 21:30 – Updated: 2025-11-04 22:15
VLAI
Summary
net/http, x/net/http2: close connections when receiving too many headers
Details
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
Severity
5.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "net/http"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.21.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net/http2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.23.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "net/http"
},
"ranges": [
{
"events": [
{
"introduced": "1.22.0-0"
},
{
"fixed": "1.22.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.23.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-45288"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-04T23:02:57Z",
"nvd_published_at": "2024-04-04T21:15:16Z",
"severity": "MODERATE"
},
"details": "An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request\u0027s headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.",
"id": "GHSA-4v7x-pqxf-cx7m",
"modified": "2025-11-04T22:15:09Z",
"published": "2024-04-04T21:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45288"
},
{
"type": "WEB",
"url": "https://go.dev/cl/576155"
},
{
"type": "WEB",
"url": "https://go.dev/issue/65051"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT"
},
{
"type": "WEB",
"url": "https://nowotarski.info/http2-continuation-flood-technical-details"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2024-2687"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20240419-0009"
},
{
"type": "WEB",
"url": "https://www.kb.cert.org/vuls/id/421644"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/04/03/16"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/04/05/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "net/http, x/net/http2: close connections when receiving too many headers"
}
GHSA-5CGQ-3RG8-M6CV
Vulnerability from github – Published: 2026-06-25 22:22 – Updated: 2026-07-17 15:32
VLAI
Summary
golang.org/x/crypto vulnerable to auth bypass via unenforced @revoked status
Details
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.
Severity
9.1 (Critical)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/crypto"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.52.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-42508"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-25T22:22:04Z",
"nvd_published_at": "2026-05-22T04:16:25Z",
"severity": "CRITICAL"
},
"details": "Previously, a revoked \u0027SignatureKey\u0027 belonging to a CA was not correctly checked for revocation. Now, both the \u0027key\u0027 and \u0027key.SignatureKey\u0027 are checked for @revoked.",
"id": "GHSA-5cgq-3rg8-m6cv",
"modified": "2026-07-17T15:32:15Z",
"published": "2026-06-25T22:22:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42508"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42508.json"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2026-5021"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
},
{
"type": "WEB",
"url": "https://go.dev/issue/79568"
},
{
"type": "WEB",
"url": "https://go.dev/cl/781220"
},
{
"type": "PACKAGE",
"url": "https://cs.opensource.google/go/x/crypto"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480688"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-42508"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41066"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41064"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41036"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41031"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41019"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40945"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40262"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40138"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40118"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37387"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37123"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37072"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36808"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36797"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36796"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36651"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36648"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:35833"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:26547"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:26546"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:23264"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:23262"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/crypto vulnerable to auth bypass via unenforced @revoked status"
}
GHSA-5CV4-JP36-H3MW
Vulnerability from github – Published: 2026-05-26 13:30 – Updated: 2026-07-01 17:58
VLAI
Summary
Go Net HTML parser is vulnerable to denial of service
Details
In Go Net (golang.org/x/net) before verion 0.55.0, parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.
Severity
6.5 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.55.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-25680"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-01T17:58:07Z",
"nvd_published_at": "2026-05-22T16:16:19Z",
"severity": "MODERATE"
},
"details": "In Go Net (`golang.org/x/net`) before verion 0.55.0, parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.",
"id": "GHSA-5cv4-jp36-h3mw",
"modified": "2026-07-01T17:58:07Z",
"published": "2026-05-26T13:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25680"
},
{
"type": "WEB",
"url": "https://go.dev/cl/781702"
},
{
"type": "WEB",
"url": "https://go.dev/issue/79573"
},
{
"type": "WEB",
"url": "https://go.googlesource.com/net/+/08be507abce89191d78cd49da60f4501fc910472"
},
{
"type": "WEB",
"url": "https://go.googlesource.com/net/+/refs/tags/v0.55.0"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2026-5028"
},
{
"type": "PACKAGE",
"url": "cs.opensource.google/go/x/net"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Go Net HTML parser is vulnerable to denial of service"
}
GHSA-69CG-P879-7622
Vulnerability from github – Published: 2022-09-07 00:01 – Updated: 2024-05-20 21:33
VLAI
Summary
golang.org/x/net/http2 Denial of Service vulnerability
Details
In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20220906165146-f3363e06e74c"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net/http2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20220906165146-f3363e06e74c"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-27664"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": true,
"github_reviewed_at": "2023-01-18T00:05:31Z",
"nvd_published_at": "2022-09-06T18:15:00Z",
"severity": "HIGH"
},
"details": "In net/http in Go before 1.18.6 and 1.19.x before 1.19.1, attackers can cause a denial of service because an HTTP/2 connection can hang during closing if shutdown were preempted by a fatal error.",
"id": "GHSA-69cg-p879-7622",
"modified": "2024-05-20T21:33:38Z",
"published": "2022-09-07T00:01:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27664"
},
{
"type": "PACKAGE",
"url": "https://cs.opensource.google/go/x/net"
},
{
"type": "WEB",
"url": "https://go.dev/cl/428735"
},
{
"type": "WEB",
"url": "https://go.dev/issue/54658"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/x49AQzIVX-s"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXKTHIGE5F576MAPFYCIJXNRGBSPISUF"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TXS2OQ57KZC5XZKK5UW4SYKPVQAHIOJX"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2022-0969"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202209-26"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220923-0004"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/net/http2 Denial of Service vulnerability"
}
GHSA-78MQ-XCR3-XM33
Vulnerability from github – Published: 2026-06-25 22:15 – Updated: 2026-08-13 15:34
VLAI
Summary
golang.org/x/crypto is vulnerable to invoking server panic during CheckHostKey/Authenticate flow
Details
SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.
Severity
5.3 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/crypto"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.52.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-39835"
],
"database_specific": {
"cwe_ids": [
"CWE-295",
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-25T22:15:17Z",
"nvd_published_at": "2026-05-22T04:16:24Z",
"severity": "MODERATE"
},
"details": "SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.",
"id": "GHSA-78mq-xcr3-xm33",
"modified": "2026-08-13T15:34:03Z",
"published": "2026-06-25T22:15:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39835"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:26546"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41031"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41036"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41066"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:42146"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:42796"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43052"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:43692"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:46885"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47735"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47949"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:48151"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:51033"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:51036"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:51038"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:52857"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:52910"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:54525"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-39835"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480680"
},
{
"type": "PACKAGE",
"url": "https://cs.opensource.google/go/x/crypto"
},
{
"type": "WEB",
"url": "https://go.dev/cl/781660"
},
{
"type": "WEB",
"url": "https://go.dev/issue/79563"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2026-5015"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39835.json"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:26547"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36199"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36207"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36319"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36625"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36648"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36651"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36796"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36797"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37072"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37123"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37268"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37271"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37272"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37286"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37296"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37387"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37410"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:38504"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40118"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40262"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40945"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40969"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40972"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:40974"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:41019"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/crypto is vulnerable to invoking server panic during CheckHostKey/Authenticate flow"
}
GHSA-83G2-8M93-V3W7
Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2024-05-20 20:30
VLAI
Summary
golang.org/x/net/html Infinite Loop vulnerability
Details
Go through 1.15.12 and 1.16.x through 1.16.4 has a golang.org/x/net/html infinite loop via crafted ParseFragment input.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/net"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20210520170846-37e1c6afe023"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-33194"
],
"database_specific": {
"cwe_ids": [
"CWE-835"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T00:33:11Z",
"nvd_published_at": "2021-05-26T15:15:00Z",
"severity": "HIGH"
},
"details": "Go through 1.15.12 and 1.16.x through 1.16.4 has a golang.org/x/net/html infinite loop via crafted ParseFragment input.",
"id": "GHSA-83g2-8m93-v3w7",
"modified": "2024-05-20T20:30:54Z",
"published": "2022-05-24T19:03:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33194"
},
{
"type": "WEB",
"url": "https://github.com/golang/net/commit/37e1c6afe02340126705deced573a85ab75209d7"
},
{
"type": "WEB",
"url": "https://go.dev/cl/311090"
},
{
"type": "WEB",
"url": "https://go.dev/issue/46288"
},
{
"type": "WEB",
"url": "https://go.googlesource.com/net/+/37e1c6afe02340126705deced573a85ab75209d7"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/wPunbCPkWUg"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4CHKSFMHZVOBCZSSVRE3UEYNKARTBMTM"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2021-0238"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/net/html Infinite Loop vulnerability"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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