PT-2026-49729 · Pypi+1 · Pypdf+1

Manop55555 · CVE-2026-49460 · Published 2026-06-16 · Updated 2026-07-29

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.12.2

Description An attacker can craft a PDF file that results in long runtimes. This occurs when accessing a stream that utilizes the /FlateDecode filter with a PNG predictor.

Recommendations Update to version 6.12.2. As a temporary workaround, apply the changes from PR #3806.

Exploit

Fix

DoS

Weakness Enumeration

CWE-407

Related Identifiers

CLEANSTART-2026-EH47852

CLEANSTART-2026-GN02455

CVE-2026-49460

GHSA-5HGR-HG42-57JG

PYSEC-2026-3010

Affected Products

Red Os

Pypdf

References · 78

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49460.json · Exploit
• https://github.com/py-pdf/pypdf/releases/tag/6.12.2 · Patch
• https://github.com/py-pdf/pypdf/security/advisories/GHSA-5hgr-hg42-57jg · Vendor Advisory
• https://github.com/py-pdf/pypdf/pull/3806 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-54531 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-48818 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-59938 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-48526 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-54283 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-48524 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-48522 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-49460 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-53537 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-54651 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-49460 · Security Note