CVE-2026-23490
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
Important: fence-agents security update
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rocky | 8 | fixed | |
| rhel | 9 | fixed | |
| sles | affected | | |
| rocky | 9 | fixed | |
| debian | bookworm | fixed | 0.4.8-3+deb12u1 |
| debian | bullseye | fixed | 0.4.8-1+deb11u1 |
| debian | forky | fixed | 0.6.2-1 |
| debian | sid | fixed | 0.6.2-1 |
| debian | trixie | fixed | 0.6.1-1+deb13u1 |
| almalinux | 9 | fixed | fence-agents-eaton-snmp-4.10.0-98.el9_7.5.noarch.rpm |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | pyasn1 | >=0.6.1,<0.6.2 | 0.6.2 |
References
- https://errata.rockylinux.org/RLSA-2026:4146
- https://errata.rockylinux.org/RLSA-2026:1904
- https://errata.rockylinux.org/RLSA-2026:1906
- https://github.com/pyasn1/pyasn1/security/advisories/GHSA-63vm-454h-vhhq
- https://nvd.nist.gov/vuln/detail/CVE-2026-23490
- https://github.com/pyasn1/pyasn1/commit/3908f144229eed4df24bd569d16e5991ace44970
- https://github.com/pyasn1/pyasn1/commit/be353d755f42ea36539b4f5053c652ddf56979a6
- https://github.com/pyasn1/pyasn1
- https://github.com/pyasn1/pyasn1/blob/0f07d7242a78ab4d129b26256d7474f7168cf536/pyasn1/codec/ber/decoder.py#L496
- https://github.com/pyasn1/pyasn1/releases/tag/v0.6.2
- https://lists.debian.org/debian-lts-announce/2026/02/msg00002.html
- https://access.redhat.com/errata/RHSA-2026:1903
- https://access.redhat.com/errata/RHSA-2026:3359
- https://www.suse.com/security/cve/CVE-2026-23490.html
- https://errata.rockylinux.org/RLSA-2026:3359
- https://errata.rockylinux.org/RLSA-2026:1903
- https://security-tracker.debian.org/tracker/CVE-2026-23490
- https://access.redhat.com/errata/RHSA-2026:1906
- https://bugzilla.redhat.com/2430472
- https://errata.almalinux.org/8/ALSA-2026-1906.html
- https://access.redhat.com/errata/RHSA-2026:4146
- https://errata.almalinux.org/8/ALSA-2026-4146.html
- https://access.redhat.com/errata/RHSA-2026:1904
- https://errata.almalinux.org/8/ALSA-2026-1904.html
- https://errata.almalinux.org/9/ALSA-2026-1903.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.