Search criteria
19 vulnerabilities by golang.org/x/crypto
CVE-2026-46598 (GCVE-0-2026-46598)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:14
VLAI
Title
Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent
Summary
For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.
Severity
5.3 (Medium)
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/agent |
Affected:
0 , < 0.52.0
(semver)
|
Credits
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{
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},
{
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},
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},
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"title": "Invoking pathological inputs can lead to client panic in golang.org/x/crypto/ssh/agent"
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CVE-2026-46595 (GCVE-0-2026-46595)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:21
VLAI
Title
Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh
Summary
Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed other than public key, then the source-address validation would be skipped.
Severity
10 (Critical)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
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},
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CVE-2026-42508 (GCVE-0-2026-42508)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:44
VLAI
Title
Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts
Summary
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)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/knownhosts |
Affected:
0 , < 0.52.0
(semver)
|
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CVE-2026-39834 (GCVE-0-2026-39834)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:50
VLAI
Title
Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh
Summary
When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.
Severity
9.1 (Critical)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
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"name": "Session.CombinedOutput"
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{
"name": "Session.Run"
},
{
"name": "Session.Shell"
},
{
"name": "Session.Start"
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{
"name": "channel.Write"
},
{
"name": "curve25519sha256.Client"
},
{
"name": "curve25519sha256.Server"
},
{
"name": "dhGEXSHA.Client"
},
{
"name": "dhGEXSHA.Server"
},
{
"name": "dhGroup.Client"
},
{
"name": "dhGroup.Server"
},
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"name": "ecdh.Client"
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"name": "extChannel.Write"
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CVE-2026-39831 (GCVE-0-2026-39831)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:52
VLAI
Title
Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh
Summary
The Verify() method for FIDO/U2F security key types (sk-ecdsa-sha2-nistp256@openssh.com, sk-ssh-ed25519@openssh.com) did not check the User Presence flag. Signatures generated without physical touch were accepted, allowing unattended use of a hardware security key. To restore the previous behavior, return a "no-touch-required" extension in Permissions.Extensions from PublicKeyCallback.
Severity
9.1 (Critical)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
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"programRoutines": [
{
"name": "CertChecker.CheckCert"
},
{
"name": "skECDSAPublicKey.Verify"
},
{
"name": "skEd25519PublicKey.Verify"
},
{
"name": "connection.serverAuthenticate"
},
{
"name": "CertChecker.Authenticate"
},
{
"name": "CertChecker.CheckHostKey"
},
{
"name": "Certificate.Verify"
},
{
"name": "Dial"
},
{
"name": "NewClientConn"
},
{
"name": "NewServerConn"
}
],
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"url": "https://go.dev/cl/781662"
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],
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CVE-2026-39829 (GCVE-0-2026-39829)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:53
VLAI
Title
Invoking pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh
Summary
The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by unauthenticated clients during public key authentication. RSA moduli are now limited to 8192 bits, and DSA parameters are validated per FIPS 186-2.
Severity
7.5 (High)
CWE
- CWE-1176 - Inefficient CPU Computation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
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CVE-2026-39830 (GCVE-0-2026-39830)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:54
VLAI
Title
Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh
Summary
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.
Severity
9.1 (Critical)
CWE
- CWE-833 - Deadlock
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
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{
"name": "mux.handleGlobalPacket"
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"name": "channel.handlePacket"
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{
"name": "channel.SendRequest"
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{
"name": "Client.Listen"
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"name": "Client.ListenTCP"
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"name": "Session.Run"
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{
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CVE-2026-39827 (GCVE-0-2026-39827)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:35
VLAI
Title
Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh
Summary
An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for garbage collection.
Severity
6.5 (Medium)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
{
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CVE-2026-39835 (GCVE-0-2026-39835)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 17:45
VLAI
Title
Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh
Summary
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)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
{
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CVE-2026-39828 (GCVE-0-2026-39828)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 17:44
VLAI
Title
Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh
Summary
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)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
{
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},
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}
],
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}
],
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}
},
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CVE-2026-46597 (GCVE-0-2026-46597)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 14:08
VLAI
Title
Invoking byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh
Summary
An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
Severity
7.5 (High)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.52.0
(semver)
|
Credits
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"name": "gcmCipher.readCipherPacket"
},
{
"name": "Dial"
},
{
"name": "NewClientConn"
},
{
"name": "NewServerConn"
},
{
"name": "curve25519sha256.Client"
},
{
"name": "curve25519sha256.Server"
},
{
"name": "dhGEXSHA.Client"
},
{
"name": "dhGEXSHA.Server"
},
{
"name": "dhGroup.Client"
},
{
"name": "dhGroup.Server"
},
{
"name": "ecdh.Client"
},
{
"name": "ecdh.Server"
},
{
"name": "mlkem768WithCurve25519sha256.Client"
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},
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"url": "https://go.dev/cl/781620"
},
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}
],
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CVE-2026-39832 (GCVE-0-2026-39832)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 19:03
VLAI
Title
Invoking agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agent
Summary
When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.
Severity
9.1 (Critical)
CWE
- CWE-281 - Improper Preservation of Permissions
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/agent |
Affected:
0 , < 0.52.0
(semver)
|
Credits
{
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{
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{
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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},
"title": "CISA ADP Vulnrichment"
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"defaultStatus": "unaffected",
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"programRoutines": [
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"name": "client.Add"
},
{
"name": "keyring.Add"
}
],
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"lessThan": "0.52.0",
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}
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"url": "https://go.dev/cl/778642"
},
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"url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-5006"
}
],
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CVE-2026-39833 (GCVE-0-2026-39833)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-05-22 18:58
VLAI
Title
Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent
Summary
The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested.
Severity
9.1 (Critical)
CWE
- CWE-358 - Improperly Implemented Security Check for Standard
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/agent |
Affected:
0 , < 0.52.0
(semver)
|
Credits
{
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{
"metrics": [
{
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"integrityImpact": "HIGH",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"timestamp": "2026-05-22T18:57:41.103317Z",
"version": "2.0.3"
},
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
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{
"collectionURL": "https://pkg.go.dev",
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"packageName": "golang.org/x/crypto/ssh/agent",
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"programRoutines": [
{
"name": "keyring.Add"
}
],
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"lessThan": "0.52.0",
"status": "affected",
"version": "0",
"versionType": "semver"
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}
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"lang": "en",
"value": "NCC Group Cryptography Services, sponsored by Teleport"
}
],
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"lang": "en",
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}
],
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{
"description": "CWE-358: Improperly Implemented Security Check for Standard",
"lang": "en"
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]
}
],
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"url": "https://go.dev/cl/778640"
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"url": "https://go.dev/cl/778641"
},
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"url": "https://groups.google.com/g/golang-announce/c/a082jnz-LvI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-5005"
}
],
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}
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CVE-2025-47914 (GCVE-0-2025-47914)
Vulnerability from cvelistv5 – Published: 2025-11-19 20:33 – Updated: 2025-11-20 17:15
VLAI
Title
Malformed constraint may cause denial of service in golang.org/x/crypto/ssh/agent
Summary
SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.
Severity
5.3 (Medium)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/agent |
Affected:
0 , < 0.45.0
(semver)
|
Credits
{
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{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"baseScore": 5.3,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
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},
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}
],
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"timestamp": "2025-11-19T20:50:27.263405Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
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"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-11-19T20:50:30.968Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/crypto/ssh/agent",
"product": "golang.org/x/crypto/ssh/agent",
"programRoutines": [
{
"name": "parseConstraints"
},
{
"name": "ForwardToAgent"
},
{
"name": "ServeAgent"
}
],
"vendor": "golang.org/x/crypto",
"versions": [
{
"lessThan": "0.45.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
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{
"lang": "en",
"value": "Jakub Ciolek"
}
],
"descriptions": [
{
"lang": "en",
"value": "SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read."
}
],
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"descriptions": [
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"description": "CWE-237",
"lang": "en"
}
]
}
],
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},
{
"url": "https://go.dev/cl/721960"
},
{
"url": "https://go.dev/issue/76364"
},
{
"url": "https://pkg.go.dev/vuln/GO-2025-4135"
}
],
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}
},
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CVE-2025-58181 (GCVE-0-2025-58181)
Vulnerability from cvelistv5 – Published: 2025-11-19 20:33 – Updated: 2025-11-20 17:14
VLAI
Title
Unbounded memory consumption in golang.org/x/crypto/ssh
Summary
SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.
Severity
5.3 (Medium)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.45.0
(semver)
|
Credits
{
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"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
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},
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}
],
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"timestamp": "2025-11-19T20:49:06.918113Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
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{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/crypto/ssh",
"product": "golang.org/x/crypto/ssh",
"programRoutines": [
{
"name": "parseGSSAPIPayload"
},
{
"name": "NewServerConn"
}
],
"vendor": "golang.org/x/crypto",
"versions": [
{
"lessThan": "0.45.0",
"status": "affected",
"version": "0",
"versionType": "semver"
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}
],
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{
"lang": "en",
"value": "Jakub Ciolek"
}
],
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{
"lang": "en",
"value": "SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption."
}
],
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"descriptions": [
{
"description": "CWE-1284",
"lang": "en"
}
]
}
],
"providerMetadata": {
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},
{
"url": "https://go.dev/cl/721961"
},
{
"url": "https://go.dev/issue/76363"
},
{
"url": "https://pkg.go.dev/vuln/GO-2025-4134"
}
],
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}
},
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},
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CVE-2025-47913 (GCVE-0-2025-47913)
Vulnerability from cvelistv5 – Published: 2025-11-13 21:29 – Updated: 2025-12-16 16:43
VLAI
Title
Potential denial of service in golang.org/x/crypto/ssh/agent
Summary
SSH clients receiving SSH_AGENT_SUCCESS when expecting a typed response will panic and cause early termination of the client process.
Severity
7.5 (High)
CWE
- CWE-703 - Improper Handling of Exceptional Conditions
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh/agent |
Affected:
0 , < 0.43.0
(semver)
|
Credits
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CVE-2025-22869 (GCVE-0-2025-22869)
Vulnerability from cvelistv5 – Published: 2025-02-26 03:07 – Updated: 2025-04-11 22:03
VLAI
Title
Potential denial of service in golang.org/x/crypto
Summary
SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.
Severity
7.5 (High)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.35.0
(semver)
|
Credits
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{
"name": "handshakeTransport.recordWriteError"
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{
"name": "handshakeTransport.kexLoop"
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{
"name": "handshakeTransport.writePacket"
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{
"name": "Client.Dial"
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{
"name": "Client.DialContext"
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{
"name": "Client.DialTCP"
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{
"name": "Client.Listen"
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{
"name": "Client.ListenTCP"
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{
"name": "Client.ListenUnix"
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{
"name": "Client.NewSession"
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{
"name": "Dial"
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{
"name": "DiscardRequests"
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{
"name": "NewClient"
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{
"name": "NewClientConn"
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{
"name": "NewServerConn"
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{
"name": "Request.Reply"
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{
"name": "Session.Close"
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"name": "Session.CombinedOutput"
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{
"name": "Session.Output"
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{
"name": "Session.RequestPty"
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{
"name": "Session.RequestSubsystem"
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{
"name": "Session.Run"
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{
"name": "Session.SendRequest"
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{
"name": "Session.Setenv"
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"name": "Session.Shell"
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"name": "Session.Signal"
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{
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{
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CVE-2024-45337 (GCVE-0-2024-45337)
Vulnerability from cvelistv5 – Published: 2024-12-11 18:55 – Updated: 2025-02-18 20:48
VLAI
Title
Misuse of connection.serverAuthenticate may cause authorization bypass in golang.org/x/crypto
Summary
Applications and libraries which misuse connection.serverAuthenticate (via callback field ServerConfig.PublicKeyCallback) may be susceptible to an authorization bypass. The documentation for ServerConfig.PublicKeyCallback says that "A call to this function does not guarantee that the key offered is in fact used to authenticate." Specifically, the SSH protocol allows clients to inquire about whether a public key is acceptable before proving control of the corresponding private key. PublicKeyCallback may be called with multiple keys, and the order in which the keys were provided cannot be used to infer which key the client successfully authenticated with, if any. Some applications, which store the key(s) passed to PublicKeyCallback (or derived information) and make security relevant determinations based on it once the connection is established, may make incorrect assumptions. For example, an attacker may send public keys A and B, and then authenticate with A. PublicKeyCallback would be called only twice, first with A and then with B. A vulnerable application may then make authorization decisions based on key B for which the attacker does not actually control the private key. Since this API is widely misused, as a partial mitigation golang.org/x/cry...@v0.31.0 enforces the property that, when successfully authenticating via public key, the last key passed to ServerConfig.PublicKeyCallback will be the key used to authenticate the connection. PublicKeyCallback will now be called multiple times with the same key, if necessary. Note that the client may still not control the last key passed to PublicKeyCallback if the connection is then authenticated with a different method, such as PasswordCallback, KeyboardInteractiveCallback, or NoClientAuth. Users should be using the Extensions field of the Permissions return value from the various authentication callbacks to record data associated with the authentication attempt instead of referencing external state. Once the connection is established the state corresponding to the successful authentication attempt can be retrieved via the ServerConn.Permissions field. Note that some third-party libraries misuse the Permissions type by sharing it across authentication attempts; users of third-party libraries should refer to the relevant projects for guidance.
Severity
9.1 (Critical)
CWE
- CWE-1108 - Excessive Reliance on Global Variables
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/ssh |
Affected:
0 , < 0.31.0
(semver)
|
Credits
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"lang": "en",
"value": "Vince Parker (Platform.sh / Upsun)"
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CVE-2022-30636 (GCVE-0-2022-30636)
Vulnerability from cvelistv5 – Published: 2024-07-02 19:51 – Updated: 2024-08-07 16:21
VLAI
Title
Limited directory traversal vulnerability on Windows in golang.org/x/crypto
Summary
httpTokenCacheKey uses path.Base to extract the expected HTTP-01 token value to lookup in the DirCache implementation. On Windows, path.Base acts differently to filepath.Base, since Windows uses a different path separator (\ vs. /), allowing a user to provide a relative path, i.e. .well-known/acme-challenge/..\..\asd becomes ..\..\asd. The extracted path is then suffixed with +http-01, joined with the cache directory, and opened. Since the controlled path is suffixed with +http-01 before opening, the impact of this is significantly limited, since it only allows reading arbitrary files on the system if and only if they have this suffix.
Severity
7.5 (High)
CWE
- CWE 22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| golang.org/x/crypto | golang.org/x/crypto/acme/autocert |
Affected:
0 , < 0.0.0-20220525230936-793ad666bf5e
(semver)
|
Credits
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"programRoutines": [
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{
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{
"name": "DirCache.Delete"
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{
"name": "HostWhitelist"
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{
"name": "Manager.GetCertificate"
},
{
"name": "Manager.Listener"
},
{
"name": "NewListener"
},
{
"name": "listener.Accept"
},
{
"name": "listener.Close"
}
],
"vendor": "golang.org/x/crypto",
"versions": [
{
"lessThan": "0.0.0-20220525230936-793ad666bf5e",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Juho Nurminen of Mattermost"
}
],
"descriptions": [
{
"lang": "en",
"value": "httpTokenCacheKey uses path.Base to extract the expected HTTP-01 token value to lookup in the DirCache implementation. On Windows, path.Base acts differently to filepath.Base, since Windows uses a different path separator (\\ vs. /), allowing a user to provide a relative path, i.e. .well-known/acme-challenge/..\\..\\asd becomes ..\\..\\asd. The extracted path is then suffixed with +http-01, joined with the cache directory, and opened. Since the controlled path is suffixed with +http-01 before opening, the impact of this is significantly limited, since it only allows reading arbitrary files on the system if and only if they have this suffix."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE 22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-07-02T19:51:46.635Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/cl/408694"
},
{
"url": "https://go.dev/issue/53082"
},
{
"url": "https://pkg.go.dev/vuln/GO-2024-2961"
}
],
"title": "Limited directory traversal vulnerability on Windows in golang.org/x/crypto"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2022-30636",
"datePublished": "2024-07-02T19:51:46.635Z",
"dateReserved": "2022-05-12T19:48:54.308Z",
"dateUpdated": "2024-08-07T16:21:06.868Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}