CVE-2026-39832CRITICAL 9.1EPSS p24.6%

CVE-2026-39832CVE-2026-39832

Description

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.33% probability of exploitation · percentile 24.6% · 2026-06-18T12:00:27Z
Published2026-05-22
Last modified2026-05-22

References

  1. https://go.dev/cl/778642
  2. https://go.dev/issue/79435
  3. https://groups.google.com/g/golang-announce/c/a082jnz-LvI
  4. https://pkg.go.dev/vuln/GO-2026-5006

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-39833
CVE
CVE-2026-39828
CVE
CVE-2026-46595
CVE
CVE-2026-39831
CVE
CVE-2026-35414
CVE
CVE-2026-39830
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.