cbcvebase.
CVE-2026-41313
published 2026-04-22

CVE-2026-41313: pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads…

PriorityP432medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.21%
11.7th percentile
pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to long runtimes. This requires loading a PDF with a large trailer `/Size` value in incremental mode. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.

Affected

12 ranges
VendorProductVersion rangeFixed in
ansible-automation-platform-25lightspeed-chatbot-rhel8
lightspeed-corerag-tool-rhel9
openshift-lightspeed-tech-previewlightspeed-rag-tool-rhel9
openshift-lightspeedlightspeed-ocp-rag-rhel9
py-pdfpypdf< 6.10.26.10.2
pypdf_projectpypdf< 6.10.26.10.2
quayquay-rhel8
quayquay-rhel9
rhelai3bootc-cuda-rhel9
rhelai3bootc-rocm-rhel9
rhelai3disk-image-cuda-rhel9
rhoaiodh-llama-stack-core-rhel9

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv4.04.8MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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
vendor_redhat4.8MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CVE-2026-41313 — Excessive Iteration in Py-pdf Pypdf | cvebase