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gawk: gawk: Denial of Service due to Use After Free vulnerability in io.c

🗓️ 03 Aug 2026 11:00:01Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 11 Views

Use after free vulnerability in gawk's do_getline_redir (io.c) can cause denial of service via crash.

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Amazon Linux 2023 : gawk, gawk-all-langpacks, gawk-devel (ALAS2023-2026-2035)
4 Aug 202600:00
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CentOS 9 : gawk-5.1.0-7.el9
26 Aug 202600:00
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EulerOS 2.0 SP12 : gawk (EulerOS-SA-2026-3259)
8 Sep 202600:00
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EulerOS 2.0 SP12 : gawk (EulerOS-SA-2026-3334)
8 Sep 202600:00
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openSUSE 16 Security Update : gawk (openSUSE-SU-2026:21393-1)
24 Jul 202600:00
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Photon OS 5.0: Gawk PHSA-2026-5.0-91-0966
20 Aug 202600:00
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64gawk5.4.1-1.hum1gawk-5.4.1-1.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64gawk5.4.1-1.hum1gawk-5.4.1-1.hum1.x86_64.rpm
Red Hat Hardened Imagesanynoarchgawk-doc5.4.1-1.hum1gawk-doc-5.4.1-1.hum1.noarch.rpm

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07 Sep 2026 01:41Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.17.5
CVSS 45.1
EPSS0.00213
SSVC
11