PT-2026-22068 · Pypi+1 · Pypdf+1

Bekkaze · CVE-2026-27888 · Published 2026-02-25 · Updated 2026-07-13

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.7.3

Description A crafted PDF file can cause excessive RAM usage, potentially leading to exhaustion. This occurs when accessing the xfa property of a reader or writer, specifically when the corresponding stream is compressed using /FlateDecode.

Recommendations Update to version 6.7.3 or later. As a workaround, apply the patch manually.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2026-02549

CVE-2026-27888

GHSA-X7HP-R3QG-R3CJ

OPENSUSE-SU-2026:10284-1

OPENSUSE-SU-2026:20333-1

PYSEC-2026-3027

Affected Products

Red Os

Pypdf

References · 41

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27888.json · Exploit
• https://github.com/py-pdf/pypdf/pull/3658 · Patch
• https://github.com/py-pdf/pypdf/commit/7a4c8246ed48d9d328fb596942271da47b6d109c · Patch
• https://github.com/py-pdf/pypdf/security/advisories/GHSA-x7hp-r3qg-r3cj · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-PYPI-CVE-2026-27888 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02549 · Security Note
• https://ubuntu.com/security/CVE-2026-27888 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-27888 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20333-1 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-x7hp-r3qg-r3cj · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-27888 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10284-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-27888 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-3027 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-27888 · Vendor Advisory