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CVE-2026-69184VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Affects Red Hat c-aresSource GCVE Database

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Not known to be exploited : upgrade the Red Hat redhat/c-ares package to 1.34.7 soon.

Data as of 30 Oct 2026, 11:52 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.34.7

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade the Red Hat redhat/c-ares package to 1.34.7.

Affected software

ProductAffectedFixed in
Red Hatredhat/c-arespkg:rpm/redhat/c-aresOther threatsAffected
  • <1.34.7
Fixed in
  • 1.34.7

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat recommends configuring applications that use c-ares to query only trusted DNS resolvers over trusted network paths and restricting DNS responses from untrusted sources to prevent malicious or on-path resolvers from delivering crafted replies. There is no complete library-level workaround. Applying the fixed c-ares update (version 1.34.7 or later) when available is the definitive remediation.

Description

A vulnerability in the c-ares asynchronous DNS resolver library allows a remote attacker to cause a denial of service by sending specially crafted DNS responses. The flaw involves trusting attacker-controlled DNS header record counts without validating the actual response size, leading to excessive heap memory allocation and degraded or denied name resolution. This affects Red Hat Hardened Images shipping c-ares versions prior to 1.34.7. The issue impacts availability only and does not cause memory corruption or data disclosure.

References

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