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VulnerabilityPublished Updated

CVE-2026-93653: A denial of service flaw was found in Poppler's Splash backend

Affects popplerSource GCVE Database

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Authoritative record:CVE-2026-93653· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.5
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  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), 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 vendor advisories for updates and consider restricting untrusted PDF rendering until a fix is available.

Description

A denial of service vulnerability (CVE-2026-93653) exists in Poppler's Splash backend. A crafted PDF with specific tiling-pattern geometry can cause an unbounded CPU loop, resulting in 100% CPU usage for an extended period. This flaw is due to an attacker-controlled repeat count in the pattern-fill routine without proper memory allocation. It affects various specific versions of Poppler used in Ubuntu distributions. The vulnerability has a medium severity score of 5.5 and does not impact confidentiality or integrity but causes availability disruption.

References

Community reviews

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