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24 vulnerabilities found for golang.org/x/crypto/ssh by golang.org/x/crypto
CVE-2026-46597 (GCVE-0-2026-46597)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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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CVE-2026-46595 (GCVE-0-2026-46595)
Vulnerability from nvd – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:05
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)
7.1 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
15 references
Impacted products
40 products
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CVE-2026-39835 (GCVE-0-2026-39835)
Vulnerability from nvd – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:04
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)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79563 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781660 | |
| https://pkg.go.dev/vuln/GO-2026-5015 | |
| https://access.redhat.com/security/cve/CVE-2026-39835 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480680 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:26547 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26546 | vendor-advisoryx_refsource_REDHAT |
Impacted products
37 products
Credits
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"cpe:/a:redhat:trusted_artifact_signer:1"
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"cpe:/a:redhat:openshift_security_profiles_operator:1"
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CVE-2026-39834 (GCVE-0-2026-39834)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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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CVE-2026-39831 (GCVE-0-2026-39831)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
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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CVE-2026-39830 (GCVE-0-2026-39830)
Vulnerability from nvd – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:05
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)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79564 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781640 | |
| https://go.dev/cl/781664 | |
| https://pkg.go.dev/vuln/GO-2026-5017 | |
| https://access.redhat.com/security/cve/CVE-2026-39830 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480684 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:29455 | vendor-advisoryx_refsource_REDHAT |
Impacted products
36 products
Credits
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CVE-2026-39829 (GCVE-0-2026-39829)
Vulnerability from nvd – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:04
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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79565 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781641 | |
| https://go.dev/cl/781661 | |
| https://pkg.go.dev/vuln/GO-2026-5018 | |
| https://access.redhat.com/security/cve/CVE-2026-39829 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480681 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:29455 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26547 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26546 | vendor-advisoryx_refsource_REDHAT |
Impacted products
38 products
Credits
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CVE-2026-39828 (GCVE-0-2026-39828)
Vulnerability from nvd – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:04
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)
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79562 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781621 | |
| https://pkg.go.dev/vuln/GO-2026-5014 | |
| https://access.redhat.com/security/cve/CVE-2026-39828 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480687 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:26547 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26546 | vendor-advisoryx_refsource_REDHAT |
Impacted products
37 products
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CVE-2026-39827 (GCVE-0-2026-39827)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
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-2025-58181 (GCVE-0-2025-58181)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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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CVE-2025-22869 (GCVE-0-2025-22869)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
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": "Session.RequestPty"
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CVE-2024-45337 (GCVE-0-2024-45337)
Vulnerability from nvd – 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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1108 - Excessive Reliance on Global Variables
Assigner
References
7 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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CVE-2026-46595 (GCVE-0-2026-46595)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:05
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)
7.1 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
15 references
Impacted products
40 products
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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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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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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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
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)
|
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CVE-2026-39829 (GCVE-0-2026-39829)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:04
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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79565 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781641 | |
| https://go.dev/cl/781661 | |
| https://pkg.go.dev/vuln/GO-2026-5018 | |
| https://access.redhat.com/security/cve/CVE-2026-39829 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480681 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
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| https://access.redhat.com/errata/RHSA-2026:26547 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26546 | vendor-advisoryx_refsource_REDHAT |
Impacted products
38 products
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CVE-2026-39830 (GCVE-0-2026-39830)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:05
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)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79564 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781640 | |
| https://go.dev/cl/781664 | |
| https://pkg.go.dev/vuln/GO-2026-5017 | |
| https://access.redhat.com/security/cve/CVE-2026-39830 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480684 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:29455 | vendor-advisoryx_refsource_REDHAT |
Impacted products
36 products
Credits
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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)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
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: 2026-07-01 12:04
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)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79563 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781660 | |
| https://pkg.go.dev/vuln/GO-2026-5015 | |
| https://access.redhat.com/security/cve/CVE-2026-39835 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480680 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:26547 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26546 | vendor-advisoryx_refsource_REDHAT |
Impacted products
37 products
Credits
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CVE-2026-39828 (GCVE-0-2026-39828)
Vulnerability from cvelistv5 – Published: 2026-05-22 02:31 – Updated: 2026-07-01 12:04
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)
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://go.dev/issue/79562 | |
| https://groups.google.com/g/golang-announce/c/a08… | |
| https://go.dev/cl/781621 | |
| https://pkg.go.dev/vuln/GO-2026-5014 | |
| https://access.redhat.com/security/cve/CVE-2026-39828 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2480687 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:26547 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:26546 | vendor-advisoryx_refsource_REDHAT |
Impacted products
37 products
Credits
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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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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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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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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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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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
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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{
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}
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}
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"collectionURL": "https://pkg.go.dev",
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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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1108 - Excessive Reliance on Global Variables
Assigner
References
7 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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