CVEvulnerability

CVE-2026-115585

7.1 HIGH Published 2026-10-23 Modified 2026-10-30 Official page ↗

Status: Awaiting Analysis
Published: 2026-10-23
Last modified: 2026-10-30
Assigner: [email protected]
CVSS 4.0 ([email protected]): 7.1 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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
Weaknesses: CWE-400, CWE-407

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing crafted cross-reference streams to produce long runtimes. This issue is fixed in version 6.21.2.

Weakness · CWE (2)

CWE-400 Uncontrolled Resource Consumption weakness
CWE-407 Inefficient Algorithmic Complexity weakness

References

https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b github.com
https://github.com/py-pdf/pypdf/pull/4240 github.com
https://github.com/py-pdf/pypdf/releases/tag/6.21.2 github.com
https://github.com/py-pdf/pypdf/security/advisories/GHSA-jr96-gvgh-j3r4 github.com

CVE-2026-115585

Description

Related

Weakness · CWE (2)

References