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veraPDF-parser EUVDEUVD-2026-50371

| CVE-2026-54080 MEDIUM
Improperly Controlled Sequential Memory Allocation (CWE-1325)
2026-07-29 GitHub_M GHSA-jrmc-qg6p-94fp
Java Information Disclosure Verapdf Parser
6.9
CVSS 4.0 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
6.9 MEDIUM
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.5 HIGH

Network-reachable PDF processing with no auth needed; uncaught OutOfMemoryError terminates the JVM process entirely, warranting High rather than the provided Low availability impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Jul 29, 2026 - 16:02 EUVD
Source Code Evidence Fetched
Jul 29, 2026 - 15:51 vuln.today
Analysis Generated
Jul 29, 2026 - 15:51 vuln.today

DescriptionCVE.org

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.

AnalysisAI

Memory and CPU exhaustion in veraPDF-parser's embedded PostScript interpreter allows remote unauthenticated attackers to crash the PDF validator by submitting a single crafted PDF. All 1.30.x releases prior to 1.30.2 and all 1.31.x releases prior to 1.31.23 of the Maven artifact org.verapdf:parser are affected. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Submit crafted PDF with malicious CMap stream to veraPDF endpoint
Delivery
CMapParser processes Type 0 font /Encoding token
Exploit
Unrecognized PostScript token falls through to PSOperator
Execution
array or zero-increment for operator executes without bounds check
Persist
JVM OutOfMemoryError or CPU spin triggered
Impact
Validation worker process terminates
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Vulnerability AssessmentAI

Exploitation The target must be running an unpatched version of org.verapdf:parser (<=1.30.1 or >=1.31.1 and <=1.31.22) and must process a PDF that is supplied by or influenced by the attacker - such as a document intake API, a compliance pipeline processing emailed attachments, or a CI/CD PDF validation step accepting external files. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms fully unauthenticated, low-complexity remote exploitation requiring no user interaction, consistent with any network-accessible document processing endpoint. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker submits a minimally crafted PDF over HTTP to a veraPDF-backed document intake or compliance validation API, containing a Type 0 font whose /Encoding CMap stream carries the bare PostScript payload `2147483647 array`. When veraPDF processes the font, CMapParser dispatches the token to PSOperator, which attempts to allocate a 16 GB ArrayList, triggering an uncaught OutOfMemoryError that terminates the validation worker. …
Remediation Upgrade the Maven artifact org.verapdf:parser to version 1.30.2 (for consumers on the 1.30.x branch) or 1.31.23 (for consumers on the 1.31.x branch), as confirmed by the vendor in the GHSA advisory at https://github.com/veraPDF/veraPDF-parser/security/advisories/GHSA-jrmc-qg6p-94fp. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-50371 vulnerability details – vuln.today
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