CVE-2026-93311: medium-severity vulnerability in Freedesktop Poppler
Freedesktop Poppler SampledFunction Function.cc integer overflow
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.6%
A vulnerability was detected in Freedesktop Poppler 26.07.0. This issue affects the function SampledFunction::SampledFunction of the file poppler/Function.cc of the component SampledFunction. The manipulation of the argument BitsPerSample results in integer overflow. The attack may be performed from remote. The exploit is now public and may be used. The project was informed of the problem early through a bug report but has not responded yet.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Freedesktop · Popplerpublic PoCs found — 1
cve_referencegithub.com/r1ck9-2q/cve_summit/blob/main/Shift-exponent-undefined-behavior-in-SampledFunction-Function.cc-376.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Freedesktop Poppler
In the same product, most dangerous first.
CVE-2026-93312MEDIUMFreedesktop Poppler JBIG2Stream.cc rewind null pointer dereferenceEPSS 0.4%CVE-2026-93314MEDIUMFreedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflowEPSS 0.2%CVE-2026-93313MEDIUMFreedesktop Poppler JBIG2Stream.cc readCodeTableSeg integer overflowEPSS 0.2%CVE-2026-102620MEDIUMFreedesktop Poppler FoFiTrueType.cc cvtSfnts integer overflowEPSS 0.1%CVE-2026-102621MEDIUMFreedesktop Poppler SplashClip.cc clipToPath integer overflowEPSS 0.1%
References
https://github.com/r1ck9-2q/cve_summit/blob/main/Shift-exponent-undefined-behavior-in-SampledFunction-Function.cc-376.mdhttps://gitlab.freedesktop.org/poppler/poppler/-/work_items/1758https://vuldb.com/cve/CVE-2026-93311https://vuldb.com/submit/942344https://vuldb.com/vuln/406609https://vuldb.com/vuln/406609/cti