CVE-2026-46595High· 7.1▾ MidnightPoC availableA flaw was found in golang.org/x/crypto/ssh. Source-address validation can be skipped when an SSH server configuration uses an authentication callback type other than public key, allowing authorization bypass in misconfigured servers. This…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 39.1 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the vendor's CSAF advisory record, not NVD.
Exploit-prediction probability, daily snapshots since Aug 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.5%
7.1 → 10
10 → 7.1
critical → high
7.1 → 10
high → critical
10 → 7.1
critical → high
7.1 → 10
high → critical
10 → 7.1
critical → high
0.5% → 0.6%
1 GitHub repo
Last analysed / modified upstream
A flaw was found in golang.org/x/crypto/ssh. Source-address validation can be skipped when an SSH server configuration uses an authentication callback type other than public key, allowing authorization bypass in misconfigured servers. This is a follow-on to incomplete coverage from the CVE-2024-45337 fix.
golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Authorization bypass due to skipped source-address validation — rated Important by Red Hat. Released 2026-05-22, updated 2026-10-25.
Affected:
Fixed:
No fix planned:
Not affected:
See the following documentation for details on how to enable Red Hat Edge Manager and more: https://docs.redhat.com/en/documentation/red_hat_edge_manager/1.1 https://access.redhat.com/errata/RHSA-2026:41019 Before applying this update, make sure all previously released errata relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:48151 See the following documentation for details on how to enable Red Hat Edge Manager and more: https://docs.redhat.com/en/documentation/red_hat_edge_manager/1.0 https://access.redhat.com/errata/RHSA-2026:36796
Affected packages:
golang.org/x/crypto/ssh < 0.52.0Patched in:
golang.org/x/crypto/ssh 0.52.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-33748Medium· 6.5github.com/moby/buildkit: BuildKit: Unauthorized file access via Git URL fragment subdir components (CVE-2026-33748)
CVE-2026-33747High· 8.2BuildKit: github.com/moby/buildkit: BuildKit: Arbitrary file write and code execution via untrusted frontend (CVE-2026-33747)
CVE-2026-44740High· 7.5github.com/go-git/go-billy: Billy: Denial of Service via crafted input due to insufficient validation (CVE-2026-44740)
CVE-2026-41178High· 7.5github.com/open-telemetry/opentelemetry-go: go.opentelemetry.io/otel/baggage: go.opentelemetry.io/otel/propagation: OpenTelemetry-Go: Denia…
CVE-2026-46598Medium· 5.3golang.org/x/crypto/ssh/agent: golang: golang.org/x/crypto/ssh/agent: Denial of Service via malformed input (CVE-2026-46598)
CVE-2026-39831High· 8.1golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Security key bypass due to missing user presence check (CVE-2026-39831)