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Fencer Intel
medium 6.3

CVE-2026-93313 json

Freedesktop Poppler JBIG2Stream.cc readCodeTableSeg integer overflow

published last mo. modified last mo. also EUVD-2026-82614

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

A vulnerability was found in Freedesktop Poppler 26.07.0. The impacted element is the function JBIG2Stream::readCodeTableSeg of the file poppler/JBIG2Stream.cc. Performing a manipulation results in integer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. The patch is named eb87cf711563894649bd0c365baa479401dc6d51. To fix this issue, it is recommended to deploy a patch.

Patch / fix

  • poppler Debian 14 26.07.0-3

debian advisories DEBIAN-CVE-2026-93313

  • poppler Ubuntu 22.04 LTS 22.02.0-2ubuntu0.14
  • poppler Ubuntu 24.04 LTS 24.02.0-1ubuntu9.10
  • poppler Ubuntu 26.04 LTS 26.01.0-2ubuntu0.2

ubuntu advisories UBUNTU-CVE-2026-93313

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • poppler hummingbird 1 26.08.0-1.1.hum1
  • poppler-cpp hummingbird 1 26.08.0-1.1.hum1
  • poppler-qt6 hummingbird 1 26.08.0-1.1.hum1
  • poppler-glib hummingbird 1 26.08.0-1.1.hum1
  • poppler-utils hummingbird 1 26.08.0-1.1.hum1

red hat advisories RHSA-2026:71625

  • poppler SLE Module for Basesystem 15 SP7 0.79.0-150200.3.56.1
  • poppler SLE Module for Package Hub 15 SP7, SLE Module for Basesystem 15 SP7 24.03.0-150600.3.34.1
  • poppler-qt5 SLE Module for Package Hub 15 SP7 24.03.0-150600.3.34.1
  • poppler-qt6 SLE Module for Package Hub 15 SP7 24.03.0-150600.3.34.1
  • poppler SLES LTSS Extended Security 12 SP5 0.43.0-16.77.1
  • poppler-qt SLES LTSS Extended Security 12 SP5 0.43.0-16.77.1

suse advisories SUSE-SU-2026:5176-1SUSE-SU-2026:5175-1SUSE-SU-2026:5133-1

  • poppler openSUSE Tumbleweed 26.09.0-2.1

opensuse advisories openSUSE-SU-2026:11885-1

Is CVE-2026-93313 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-93313 updated cvss 6.3

poppler: Poppler: Remote integer overflow vulnerability

  • Red Hat Hardened Images poppler 26.08.0-1.1.hum1, poppler-cpp 26.08.0-1.1.hum1, poppler-qt6 26.08.0-1.1.hum1, poppler-glib 26.08.0-1.1.hum1, poppler-utils 26.08.0-1.1.hum1
    fixed: vendor fix RHSA-2026:71625
  • Red Hat Enterprise Linux 6 poppler, poppler-qt, poppler-qt4, poppler-glib, poppler-utils Red Hat Enterprise Linux 7 poppler, poppler-qt, poppler-cpp, poppler-glib, poppler-demos, poppler-utils, +4 more Red Hat Enterprise Linux 8 poppler, poppler-cpp, poppler-qt5, poppler-glib, poppler-utils Red Hat Enterprise Linux 9 poppler, poppler-cpp, poppler-qt5, poppler-glib, poppler-utils Red Hat Enterprise Linux 10 poppler
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/r1ck9-2q/cve_summit/blob/main/Signed-integer-overflow-in-JBIG2Stream-readCodeTableSeg-JBIG2Stream.cc-4118.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
CNA 4.0 2.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CNA 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Freedesktop Poppler

Classification

Weakness

References

Sources

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