🛡️ ALSA-2026:42096 — c-ares (CVE-2026-33630)
Description
Important: c-ares security update
The c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.
Security Fix(es):
- c-ares: c-ares: Use-after-free / double-free in query-completion handling (CVE-2026-33630)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
ALSA-2026:42096 is recorded against 2 packages.
- c-ares (fixed in 1.34.6-2.el10_2)
- c-ares-devel (fixed in 1.34.6-2.el10_2)
Timeline and source
Published on 20 July 2026 and last revised on 21 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
access.redhat.com (Advisory)
access.redhat.com (Report)
bugzilla.redhat.com (Report)
errata.almalinux.org (Advisory)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| c-ares | — | 1.34.6-2.el10_2 |
| c-ares-devel | — | 1.34.6-2.el10_2 |
References
Similar Threats
- Unknown ALPINE-CVE-2025-62408
- Unknown ALPINE-CVE-2025-31498
- Unknown ALSA-2024:4249
- Unknown ALSA-2024:3842
- Unknown BELL-CVE-2024-25629
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