CVE-2026-54081: CWE-1325: Improperly Controlled Sequential Memory Allocation in veraPDF veraPDF-parser
veraPDF-parser versions prior to 1.30.2 and 1.31.23 contain a denial-of-service vulnerability due to improperly controlled sequential memory allocation. A crafted Type 1 font can trigger unbounded PostScript array allocation, zero-increment loops, or recursive dictionary lookups, exhausting memory, CPU, or stack resources. This issue is fixed in versions 1.30.2 and 1.31.23.
AI Analysis
Technical Summary
The vulnerability in veraPDF-parser involves improper control of sequential memory allocation within the handling of Type 1 fonts. Specifically, crafted /FontDescriptor /FontFile programs can cause unbounded PostScript array allocations, zero-increment for loops, or self-recursive toExecute user dictionary lookups. These conditions lead to exhaustion of validator memory, CPU, or stack resources, resulting in a denial-of-service. The flaw affects versions prior to 1.30.2 and 1.31.23 and has been addressed in these fixed releases.
Potential Impact
Successful exploitation results in denial-of-service by exhausting system resources such as memory, CPU, or stack within the veraPDF-parser process. This can cause the validator to crash or become unresponsive, impacting availability but does not indicate code execution or data breach.
Mitigation Recommendations
Upgrade veraPDF-parser to version 1.30.2 or 1.31.23 or later where this vulnerability is fixed. No other mitigation or workaround is indicated in the available data.
CVE-2026-54081: CWE-1325: Improperly Controlled Sequential Memory Allocation in veraPDF veraPDF-parser
Description
veraPDF-parser versions prior to 1.30.2 and 1.31.23 contain a denial-of-service vulnerability due to improperly controlled sequential memory allocation. A crafted Type 1 font can trigger unbounded PostScript array allocation, zero-increment loops, or recursive dictionary lookups, exhausting memory, CPU, or stack resources. This issue is fixed in versions 1.30.2 and 1.31.23.
CVSS v4.0
Score 6.9medium
Affected software
veraPDF
veraPDF-parser
pkg:github/verapdf/veraPDF-parserRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in veraPDF-parser involves improper control of sequential memory allocation within the handling of Type 1 fonts. Specifically, crafted /FontDescriptor /FontFile programs can cause unbounded PostScript array allocations, zero-increment for loops, or self-recursive toExecute user dictionary lookups. These conditions lead to exhaustion of validator memory, CPU, or stack resources, resulting in a denial-of-service. The flaw affects versions prior to 1.30.2 and 1.31.23 and has been addressed in these fixed releases.
Potential Impact
Successful exploitation results in denial-of-service by exhausting system resources such as memory, CPU, or stack within the veraPDF-parser process. This can cause the validator to crash or become unresponsive, impacting availability but does not indicate code execution or data breach.
Mitigation Recommendations
Upgrade veraPDF-parser to version 1.30.2 or 1.31.23 or later where this vulnerability is fixed. No other mitigation or workaround is indicated in the available data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-11T18:44:47.760Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a6a1e549c2644c7f8b2d2f6
Added to database: 07/29/2026, 15:37:56 UTC
Last enriched: 08/06/2026, 17:47:29 UTC
Last updated: 09/10/2026, 20:00:06 UTC
Views: 66
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