CVE-2026-40467
CVE-2026-40467: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium4.0
Medium [CVE-2026-40467] Denial of Service due to Use After Free vulnerability in io.c
CVE-2026-40467Source published Source updated
Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below. A flaw was found in gawk. This vulnerability can be triggered by an attacker, potentially leading to a system crash and causing a Denial of Service (DoS). This flaw, affecting gawk in Red Hat Hardened Images, requires a local attacker with low privileges to trick a user into interacting with specially crafted input, limiting its immediate impact. Red Hat severity: Moderate — CVSS 4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-825. Affected Red Hat products: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8…
- Affected products in this advisory
- Red Hat Hardened Images
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
4 more entries in the full advisory.
- Source-reported affected versions
- 5.4.0
- Source-reported fixed versions
- gawk-main-5.4.0-3.1.hum1
- gawk-main-5.4.1-1.hum1
- RHSA-2026:40041
- RHSA-2026:49661
- Mitigation guidance
- To mitigate this issue, users should avoid processing untrusted or maliciously crafted input with `gawk`. Exercise caution when executing `gawk` scripts or commands that process data from unknown or unverified sources.
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