Vulnerability · Published Jul 29, 2026 · Assigned by GitHub_M

CVE-2026-54080veraPDF Parser DoS via PostScript CMap Streams

Medium 6.9

In plain English

A medium-severity security flaw in veraPDF-parser from veraPDF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.5%top 55.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

veraPDF PDF parser is a PDF parser for veraPDF. Prior to 1.30.2 and 1.31.23, veraPDF-parser contains a denial-of-service vulnerability in veraPDF-parser/src/main/java/org/verapdf/pd/font/cmap/CMapParser.java and veraPDF-parser/src/main/java/org/verapdf/parser/postscript/PSOperator.java, where a crafted Type 0 font /Encoding or /ToUnicode CMap stream can execute unbounded PostScript array allocation or a zero-increment for loop and exhaust validator memory or CPU. This issue is fixed in versions 1.30.2 and 1.31.23.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.verapdf:parser	1.30.2	GHSA-jrmc-qg6p-94fp
Maven	org.verapdf:parser	1.31.23	GHSA-jrmc-qg6p-94fp

Affected products (as reported)

Vendor	Product	Versions
veraPDF	veraPDF-parser	< 1.30.2>= 1.31.1, < 1.31.23

Weakness: CWE-1325 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

References

https://github.com/veraPDF/veraPDF-parser/security/advisories/GHSA-jrmc-qg6p-94fp x_refsource_CONFIRM
https://github.com/veraPDF/veraPDF-parser/pull/703 x_refsource_MISC
https://github.com/veraPDF/veraPDF-parser/commit/73d6ec002b98ce1f3f68640442f8e5d5613c80ce x_refsource_MISC
https://github.com/veraPDF/veraPDF-parser/commit/cb3538607a549d63504299be1088c85ae48605f4 x_refsource_MISC