Bug 2496707 (CVE-2026-38970)

Summary: CVE-2026-38970 github.com/pdfcpu/pdfcpu: pdfcpu: Denial of Service via uncontrolled recursion in PDF parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in pdfcpu. The PDF parser contains an uncontrolled recursion vulnerability when processing nested PDF objects, such as arrays. A remote attacker could exploit this by crafting a malicious PDF file. This could lead to a Denial of Service (DoS) due to excessive resource consumption, making the application unresponsive.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2497727    
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Description OSIDB Bzimport 2026-07-02 22:01:22 UTC
pdfcpu through v0.11.1 contains an uncontrolled-recursion denial-of-service issue in pkg/pdfcpu/model/parse.go. The parser descends recursively through nested PDF objects, including arrays, via ParseObjectContext() and parseArray() without enforcing a maximum nesting depth.