Description
A flaw has been found in Freedesktop Poppler 26.07.0. Impacted is the function JBIG2Stream::rewind of the file poppler/JBIG2Stream.cc. This manipulation causes null pointer dereference. It is possible to initiate the attack remotely. The exploit has been published and may be used. Upgrading to version 26.08.0 is recommended to address this issue. Patch name: 5e49250f13b0390edeb3f90eb4c02c9941f97067. Upgrading the affected component is advised.
References10
- github.com/r1ck9-2q/cve_summit/blob/main/Null-pointer-offset-un…
- gitlab.freedesktop.org/poppler/poppler/-/commit/5e49250f13b0390…
- gitlab.freedesktop.org/poppler/poppler/-/merge_requests/2314
- gitlab.freedesktop.org/poppler/poppler/-/work_items/1759
- vuldb.com/cve/CVE-2026-93312
- vuldb.com/submit/942345
- vuldb.com/vuln/406610
- vuldb.com/vuln/406610/cti
- gitlab.freedesktop.org/poppler/poppler/-/work_items/1759
- vuldb.com/submit/942345
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - CVSS 4.0
-
2.1
LOW
Score source: CNA
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 35 · as of 8 November 2026
- CWE
- CWE-404CWE-476
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.