Infinite loop in Xpdf JPEG 2000 decoder
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
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Xpdf | Xpdf | up to 4.06 | — | No fix listed | CNA |
- 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.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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
Timeline
- 2026-10-26 Threatist record created from CVE-2026-116671
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-27 CVSS score added · Red Hat
- 2026-10-27 Alias added: GHSA-pmgm-6pc2-9qvc
- 2026-11-02 CISA SSVC decision points changed
References
More Xpdf vulnerabilities
- 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
Sources
- CVE-2026-116671 · CVE Program
- CVE-2026-116671 · NVD
- FIRST EPSS
- GHSA-pmgm-6pc2-9qvc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-116671 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences