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

Quick assessment

Affected
veraPDF veraPDF-parser
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

veraPDF veraPDF-parser是veraPDF组织开源的一款PDF文件解析验证软件。 veraPDF-parser 1.30.2之前版本和1.31.1至1.31.23之前版本存在资源管理错误漏洞，该漏洞源于在CMapParser.java和PSOperator.java中，特制的Type 0字体/Encoding或/ToUnicode CMap流可执行无界PostScript数组分配或零增量for循环，耗尽验证器内存或CPU，导致拒绝服务攻击。

CVSS 6.9 · Medium EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProduct Version RangeStatus
veraPDF veraPDF-parser < 1.30.2 affected
>= 1.31.1, < 1.31.23 affected
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I. Basic Information for CVE-2026-54080

Vulnerability Information
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Vulnerability Title
veraPDF Parser DoS via PostScript CMap Streams
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1325
Source: CVE Program / CVE List V5
Vulnerability Title
veraPDF-parser 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
veraPDF veraPDF-parser是veraPDF组织开源的一款PDF文件解析验证软件。 veraPDF-parser 1.30.2之前版本和1.31.1至1.31.23之前版本存在资源管理错误漏洞，该漏洞源于在CMapParser.java和PSOperator.java中，特制的Type 0字体/Encoding或/ToUnicode CMap流可执行无界PostScript数组分配或零增量for循环，耗尽验证器内存或CPU，导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
veraPDF veraPDF-parser < 1.30.2 -

II. Public POCs for CVE-2026-54080

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III. Intelligence Information for CVE-2026-54080

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Patches & Fixes for CVE-2026-54080 (3)

Vendor Advisories for CVE-2026-54080 (1)

Same Patch Batch · veraPDF · 2026-07-29 · 5 CVEs total

CVE-2026-54078 8.7 HIGH veraPDF Validation XXE via Rich Text
CVE-2026-54079 8.7 HIGH veraPDF Validation XXE via XFA
CVE-2026-54081 6.9 MEDIUM veraPDF Parser DoS via PostScript Type 1 Font Programs
CVE-2026-54082 6.5 MEDIUM veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Un

IV. Related Vulnerabilities

Same product: veraPDF-parser
Same vendor: veraPDF
Same weakness: CWE-1325

V. Comments for CVE-2026-54080

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