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Infinite loop in Xpdf JPEG 2000 decoder

Priority LOW 10CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-835.

Summary

Xpdf 4.06 and earlier contains an infinite loop caused by incorrect validation of the progression order field in JPEG 2000 images (CWE-20). A local attacker with no privileges can make Xpdf hang when it processes a crafted JPEG 2000 image, which causes a denial of service.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

Infinite loop in Xpdf 4.06 and earlier, due to incorrect validation of progression order field in JPEG 2000 image.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0011 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
XpdfXpdfup to 4.06—No fix listedCNA
  • Xpdf VendorXpdf Affected up to 4.06 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:xpdfreader:xpdf:*:*:*:*:*:*:*:*——Xpdfreader
  • cpe:2.3:a:xpdfreader:xpdf:*:*:*:*:*:*:*:* Versions — — ·Xpdfreader

Remediation

The sources list no fixed version for Xpdf.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-116671
  2. 2026-10-27 Affected versions changed · Red Hat
  3. 2026-10-27 CVSS score added · Red Hat
  4. 2026-10-27 Alias added: GHSA-pmgm-6pc2-9qvc
  5. 2026-11-02 CISA SSVC decision points changed

References

  • TI-2003-00409 Various PDF viewers including (1) Adobe Acrobat 5.06 and (2) Xpdf 1.01 allow remote… CVSS 2.0HIGH 7.5
  • TI-2024-03046 Stack overflow in Xpdf 4.05 due to object loop in attachments CVSS 3.1MEDIUM 5.5
  • TI-2024-03045 Stack overflow in Xpdf 4.05 due to object loop in PDF object stream CVSS 3.1MEDIUM 5.5
  • TI-2023-02492 Stack overflow in Xpdf 4.04 due to object loop in PDF embedded file tree CVSS 3.1MEDIUM 5.5
  • TI-2004-00806 Multiple integer overflows in xpdf 2.0 and 3.0, and other packages that use xpdf code… CVSS 2.0HIGH 10.0
  • TI-2004-00807 Multiple integer overflows in xpdf 3.0, and other packages that use xpdf code such as… CVSS 2.0HIGH 10.0
See all 47 →

Sources