Source: expat Version: 2.8.4-1 Severity: important Tags: security upstream Forwarded: https://github.com/libexpat/libexpat/pull/1282 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for expat. CVE-2026-93990[0]: | Expat through 2.8.4 fails to validate low surrogates following high | surrogates in UTF-16 input, allowing malformed UTF-16 sequences to | be accepted. Attackers can craft UTF-16 encoded XML with lone high | surrogates that consume following code units, hiding markup | characters from the parser and enabling XML injection attacks. 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-2026-93990 https://www.cve.org/CVERecord?id=CVE-2026-93990 [1] https://github.com/libexpat/libexpat/pull/1282 [2] https://github.com/libexpat/libexpat/commit/0cfd15bdf4b2c22d6b0df73610709dfb60921091 [3] https://github.com/libexpat/libexpat/commit/28fcfba540f6933aa8904a1514c4811713d2ab72 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
