Source: pypdf Version: 5.4.0-1 Severity: important Tags: security upstream Forwarded: https://github.com/py-pdf/pypdf/pull/3594 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerabilities were published for pypdf. CVE-2026-22690[0]: | pypdf is a free and open-source pure-python PDF library. Prior to | version 6.6.0, pypdf has possible long runtimes for missing /Root | object with large /Size values. An attacker who uses this | vulnerability can craft a PDF which leads to possibly long runtimes | for actually invalid files. This can be achieved by omitting the | /Root entry in the trailer, while using a rather large /Size value. | Only the non-strict reading mode is affected. This issue has been | patched in version 6.6.0. CVE-2026-22691[1]: | pypdf is a free and open-source pure-python PDF library. Prior to | version 6.6.0, pypdf has possible long runtimes for malformed | startxref. An attacker who uses this vulnerability can craft a PDF | which leads to possibly long runtimes for invalid startxref entries. | When rebuilding the cross-reference table, PDF files with lots of | whitespace characters become problematic. Only the non-strict | reading mode is affected. Only the non-strict reading mode is | affected. This issue has been patched in version 6.6.0. If you fix the vulnerabilities please also make sure to include the CVE (Common Vulnerabilities & Exposures) ids in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-22690 https://www.cve.org/CVERecord?id=CVE-2026-22690 [1] https://security-tracker.debian.org/tracker/CVE-2026-22691 https://www.cve.org/CVERecord?id=CVE-2026-22691 [2] https://github.com/py-pdf/pypdf/pull/3594 [3] https://github.com/py-pdf/pypdf/commit/294165726b646bb7799be1cc787f593f2fdbcf45 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
