GHSA-f5wc-c3c7-36mc

    Dashboard / Vulnerabilities / GHSA-f5wc-c3c7-36mc

    GHSA-f5wc-c3c7-36mc

    Published: 25 Jun 2026Last Modified: 10 Sept 2026

    Summary: golang.org/x/crypto doesn't drop invoking agent constraints when forwarding keys

    Details: When adding a key to a remote agent constraint extensions such as [email protected] 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-39832, https://access.redhat.com/errata/RHSA-2026:35833, https://access.redhat.com/errata/RHSA-2026:41036, https://access.redhat.com/errata/RHSA-2026:41066, https://access.redhat.com/errata/RHSA-2026:42146, https://access.redhat.com/errata/RHSA-2026:42796, https://access.redhat.com/errata/RHSA-2026:43052, https://access.redhat.com/errata/RHSA-2026:43692, https://access.redhat.com/errata/RHSA-2026:49944, https://access.redhat.com/errata/RHSA-2026:52857, https://access.redhat.com/errata/RHSA-2026:52910, https://access.redhat.com/security/cve/CVE-2026-39832, https://bugzilla.redhat.com/show_bug.cgi?id=2480685, https://cs.opensource.google/go/x/crypto, https://go.dev/cl/778642, https://go.dev/issue/79435, https://groups.google.com/g/golang-announce/c/a082jnz-LvI, https://pkg.go.dev/vuln/GO-2026-5006, https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39832.json, https://access.redhat.com/errata/RHSA-2026:36199, https://access.redhat.com/errata/RHSA-2026:36319, https://access.redhat.com/errata/RHSA-2026:36625, https://access.redhat.com/errata/RHSA-2026:36648, https://access.redhat.com/errata/RHSA-2026:36651, https://access.redhat.com/errata/RHSA-2026:36796, https://access.redhat.com/errata/RHSA-2026:36797, https://access.redhat.com/errata/RHSA-2026:37072, https://access.redhat.com/errata/RHSA-2026:37123, https://access.redhat.com/errata/RHSA-2026:37271, https://access.redhat.com/errata/RHSA-2026:37387, https://access.redhat.com/errata/RHSA-2026:37410, https://access.redhat.com/errata/RHSA-2026:40118, https://access.redhat.com/errata/RHSA-2026:40262, https://access.redhat.com/errata/RHSA-2026:40945, https://access.redhat.com/errata/RHSA-2026:40972, https://access.redhat.com/errata/RHSA-2026:41019, https://access.redhat.com/errata/RHSA-2026:41031

    Affected packages

    Package

    Name: golang.org/x/crypto

    Purl: pkg:golang/golang.org/x/crypto

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.52.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High