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

• Severity: medium (CVSS 6.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-29 · updated 2026-10-23
• Weakness: CWE-1325

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 products

• veraPDF-parser: before 1.30.2; from 1.31.1, < 1.31.23

References

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

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