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VulnerabilityPublished Updated

CVE-2026-93311: Freedesktop Poppler

Affects popplerSource GCVE Database

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Authoritative record:CVE-2026-93311· Medium 5.3

Public exploit available · CVSS 5.3 Medium.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10popplerpkg:deb/ubuntu/poppler?arch=source&distro=stonkingOther threatsAffected
  • 26.01.0-2build2 – 26.07.0-2ubuntu1.1
6 affected builds
Fixed in–
Ubuntu 26.04 LTSpopplerpkg:deb/ubuntu/poppler?arch=source&distro=resoluteOther threatsAffected
  • 25.03.0-10 – 26.01.0-2ubuntu0.3
6 affected builds
Fixed in–
Ubuntu 24.04 LTSpopplerpkg:deb/ubuntu/poppler?arch=source&distro=nobleOther threatsAffected
  • 23.08.0-2ubuntu1 – 24.02.0-1ubuntu9.11
16 affected builds
Fixed in–
Ubuntu 22.04 LTSpopplerpkg:deb/ubuntu/poppler?arch=source&distro=jammyOther threatsAffected
  • 21.06.1-1 – 22.02.0-2ubuntu0.15
18 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSpopplerpkg:deb/ubuntu/poppler?arch=source&distro=esm-infra/focalOther threatsAffected
  • 0.80.0-0ubuntu1 – 0.86.1-0ubuntu1.7+esm3
17 affected builds
Fixed in–
Ubuntu Pro 18.04 LTSpopplerpkg:deb/ubuntu/poppler?arch=source&distro=esm-infra/bionicOther threatsAffected
  • 0.57.0-2ubuntu4 – 0.62.0-2ubuntu2.14+esm8
26 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should monitor the vendor's advisory for updates. Until a patch is available, consider applying workarounds if any are provided by the vendor or restrict exposure of vulnerable Poppler versions to untrusted inputs. Avoid processing untrusted PDF files with affected Poppler versions.

Description

CVE-2026-93311 is a medium severity integer overflow vulnerability in Freedesktop Poppler version 26.07.0 affecting the SampledFunction::SampledFunction function in poppler/Function.cc. The flaw is caused by manipulation of the BitsPerSample argument. This vulnerability can be exploited remotely, and public exploit code is available. Multiple specific Ubuntu package versions of Poppler are affected. The project has been notified but has not yet issued a fix.

References

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