JLSEC-2026-21 High 7.8

Buffer Overflow vulnerability in function `bitwriter_grow_` in flac before 1.4.0 allows remote...

JLSEC Published: Apr 1, 2026
Modified: Jul 23, 2026
Severity: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages: FLAC_jll < 1.4.2+0
Upstream: CVE-2020-22219

Buffer Overflow vulnerability in function bitwriter_grow_ in flac before 1.4.0 allows remote attackers to run arbitrary code via crafted input to the encoder.

References

https://github.com/xiph/flac/issues/215
https://lists.debian.org/debian-lts-announce/2023/09/msg00028.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZD2AJTU4PCJQP7HPTS2L2ELJWBASCRGD/
https://www.debian.org/security/2023/dsa-5500