Vulnerability · Published Oct 26, 2026 · Assigned by GandC

CVE-2026-116671Infinite loop in Xpdf due to missing validation in JPEG 2000 decoder

Low 2.1

In plain English

A low-severity improper input validation in Xpdf from Xpdf. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 4.0)2.1Low
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:22.04:LTSipeno fix listedUBUNTU-CVE-2026-116671
Ubuntu:24.04:LTSipeno fix listedUBUNTU-CVE-2026-116671
Ubuntu:26.04:LTSipeno fix listedUBUNTU-CVE-2026-116671
Ubuntu:26.10ipeno fix listedUBUNTU-CVE-2026-116671
Ubuntu:22.04:LTSxpdfno fix listedUBUNTU-CVE-2026-116671
Ubuntu:24.04:LTSxpdfno fix listedUBUNTU-CVE-2026-116671
Ubuntu:26.04:LTSxpdfno fix listedUBUNTU-CVE-2026-116671
Ubuntu:26.10xpdfno fix listedUBUNTU-CVE-2026-116671

Affected products (as reported)

VendorProductVersions
Xpdf Xpdf 0 – through 4.06

Weakness: CWE-20, CWE-835 · Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References