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VulnerabilityPublished Updated

CVE-2023-34872: poppler · Uncontrolled Resource Consumption

Affects popplerSource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 23.06.0 when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 59% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 23.06.0
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 31 Jul 2023

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade the Debian debian/poppler package to 23.06.0.

Affected software

ProductAffectedFixed in
Debiandebian/popplerpkg:deb/debian/popplerOther threatsAffected
  • <23.06.0
Fixed in
  • 23.06.0

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

AI-suggested

Organizations should monitor for the release of Poppler version 23.06.0 or later, which addresses this vulnerability, and apply updates promptly. If you cannot patch yet, restrict the opening of untrusted PDF files, especially those received via email or downloaded from the internet. Employ sandboxing or isolation techniques for PDF viewers to contain potential crashes and prevent broader system impact. Implement user awareness training to reduce the risk of opening malicious PDFs. For automated systems processing PDFs, validate and sanitize input files before rendering. Consider alternative PDF rendering libraries with no known vulnerabilities if immediate patching is not feasible. Maintain robust logging and monitoring to detect abnormal application crashes that may indicate exploitation attempts. Finally, ensure backup and recovery procedures are in place to minimize disruption from denial-of-service incidents.

Description

A vulnerability in Outline.cc for Poppler prior to 23.06.0 allows a remote attacker to cause a Denial of Service (DoS) (crash) via a crafted PDF file in OutlineItem::open.

References

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