CVE-2026-93314: Freedesktop Poppler FoFiTrueType.cc mapCodeToGID integer overflow

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% 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 determined in Freedesktop Poppler 26.07.0. This affects the function FoFiTrueType::mapCodeToGID of the file fofi/FoFiTrueType.cc. Executing a manipulation of the argument segCnt can lead to integer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This patch is called ed2a5538cf0a8d3ff908191eda9b73f91a5f952a. It is advisable to implement a patch to correct this issue.

Affected products

poppler: 26.07.0

References

https://github.com/r1ck9-2q/cve_summit/blob/main/Signed-integer-overflow-in-FoFiTrueType-mapCodeToGID-FoFiTrueType.cc-608.md
https://gitlab.freedesktop.org/poppler/poppler/-/commit/ed2a5538cf0a8d3ff908191eda9b73f91a5f952a?merge_request_iid=2315
https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2315
https://gitlab.freedesktop.org/poppler/poppler/-/work_items/1761
https://vuldb.com/cve/CVE-2026-93314
https://vuldb.com/submit/942347
https://vuldb.com/vuln/406613
https://vuldb.com/vuln/406613/cti

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