CVE-2026-93311: Freedesktop Poppler SampledFunction Function.cc integer overflow

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-18 · updated 2026-09-22
Weakness: CWE-189

Description

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.

Affected products

poppler: 26.07.0

References

https://github.com/r1ck9-2q/cve_summit/blob/main/Shift-exponent-undefined-behavior-in-SampledFunction-Function.cc-376.md
https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1758
https://vuldb.com/cve/CVE-2026-93311
https://vuldb.com/submit/942344
https://vuldb.com/vuln/406609
https://vuldb.com/vuln/406609/cti

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