Source: pypdf Version: 5.4.0-1 Severity: important Tags: security upstream Forwarded: https://github.com/py-pdf/pypdf/pull/3658 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for pypdf. CVE-2026-27888[0]: | pypdf is a free and open-source pure-python PDF library. Prior to | 6.7.3, an attacker who uses this vulnerability can craft a PDF which | leads to the RAM being exhausted. This requires accessing the `xfa` | property of a reader or writer and the corresponding stream being | compressed using `/FlateDecode`. This has been fixed in pypdf 6.7.3. | As a workaround, apply the patch manually. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-27888 https://www.cve.org/CVERecord?id=CVE-2026-27888 [1] https://github.com/py-pdf/pypdf/pull/3658 [2] https://github.com/py-pdf/pypdf/security/advisories/GHSA-x7hp-r3qg-r3cj [3] https://github.com/py-pdf/pypdf/commit/7a4c8246ed48d9d328fb596942271da47b6d109c Please adjust the affected versions in the BTS as needed. Regards, Salvatore
