Source: pypdf Version: 5.4.0-1 Severity: important Tags: security upstream Forwarded: https://github.com/py-pdf/pypdf/pull/3646 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for pypdf. CVE-2026-27025[0]: | pypdf is a free and open-source pure-python PDF library. Prior to | 6.7.1, an attacker who uses this vulnerability can craft a PDF which | leads to long runtimes and large memory consumption. This requires | parsing the /ToUnicode entry of a font with unusually large values, | for example during text extraction. This vulnerability is fixed in | 6.7.1. 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-2026-27025 https://www.cve.org/CVERecord?id=CVE-2026-27025 [1] https://github.com/py-pdf/pypdf/pull/3646 [2] https://github.com/py-pdf/pypdf/security/advisories/GHSA-wgvp-vg3v-2xq3 [3] https://github.com/py-pdf/pypdf/commit/77d7b8d7cfbe8dd179858dfa42666f73fc6e57a2 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
