CVE-2026-54080: veraPDF Parser DoS via PostScript CMap Streams
Description
A PostScript-interpreter-driven Denial of Service (CWE-1325) vulnerability in veraPDF allows a remote attacker to exhaust validator memory or CPU by submitting a PDF whose Type 0 font /Encoding (or any /ToUnicode) is a CMap stream containing attacker-supplied PostScript. veraPDF reuses its CMap parser as a general PostScript interpreter and exposes the unguarded array N allocation operator and the for control operator with no zero-increment guard. This affects all current versions of veraPDF-parser.
References
- github.com/advisories/GHSA-jrmc-qg6p-94fp
- github.com/veraPDF/veraPDF-parser/commit/73d6ec002b98ce1f3f68640442f8e5d5613c80ce
- github.com/veraPDF/veraPDF-parser/commit/cb3538607a549d63504299be1088c85ae48605f4
- github.com/veraPDF/veraPDF-parser/pull/703
- github.com/veraPDF/veraPDF-parser/security/advisories/GHSA-jrmc-qg6p-94fp
- nvd.nist.gov/vuln/detail/CVE-2026-54080
Code Behaviors & Features
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