CVE-2026-27135
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
Important: nghttp2 security update
Predictions
Exploit likelihood
83%
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 | |
| rocky | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 1.52.0-1+deb12u3 |
| debian | bullseye | fixed | 1.43.0-1+deb11u3 |
| debian | forky | fixed | 1.68.1-1 |
| debian | sid | fixed | 1.68.1-1 |
| debian | trixie | fixed | 1.64.0-1.1+deb13u1 |
| almalinux | 9 | fixed | nodejs-docs-24.14.1-2.module_el9.7.0+222+ef1c61e1.noarch.rpm |
| almalinux | 8 | fixed | libnghttp2-1.33.0-6.el8_10.2.i686.rpm |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| nghttp2 | nghttp2 | {"endExcluding":"1.68.1"} | 1.68.1 |
References
- https://errata.rockylinux.org/RLSA-2026:7123
- https://access.redhat.com/errata/RHSA-2026:7302
- https://access.redhat.com/errata/RHSA-2026:7350
- https://access.redhat.com/errata/RHSA-2026:7668
- https://access.redhat.com/errata/RHSA-2026:7896
- https://github.com/nghttp2/nghttp2/commit/5c7df8fa815ac1004d9ecb9d1f7595c4d37f46e1
- https://github.com/nghttp2/nghttp2/security/advisories/GHSA-6933-cjhr-5qg6
- http://www.openwall.com/lists/oss-security/2026/03/20/3
- https://lists.debian.org/debian-lts-announce/2026/05/msg00025.html
- https://errata.rockylinux.org/RLSA-2026:7302
- https://www.suse.com/security/cve/CVE-2026-27135.html
- https://security-tracker.debian.org/tracker/CVE-2026-27135
- https://access.redhat.com/errata/RHSA-2026:7667
- https://bugzilla.redhat.com/2448754
- https://errata.almalinux.org/8/ALSA-2026-7667.html
- https://errata.almalinux.org/9/ALSA-2026-7668.html
- https://access.redhat.com/errata/RHSA-2026:8339
- https://bugzilla.redhat.com/2441268
- https://bugzilla.redhat.com/2442922
- https://bugzilla.redhat.com/2453151
- https://errata.almalinux.org/8/ALSA-2026-8339.html
- https://errata.almalinux.org/9/ALSA-2026-7896.html
- https://access.redhat.com/errata/RHSA-2026:7123
- https://bugzilla.redhat.com/2436942
- https://bugzilla.redhat.com/2447142
CWEs
CWE-617
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.