ALPINE-CVE-2026-57077
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-57077
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-57077.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-57077
- Upstream
- Published
- 2026-07-16T22:17:43.650Z
- Modified
- 2026-08-27T22:18:03.705693889Z
- Severity
-
- 7.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len.
In the bundled libsyck newlinelen and isnewline dereference the scan pointer, and the following byte for a "\r\n" pair, with no NUL-terminator or bounds check. During block-scalar lexing at a document boundary the scan runs one byte past the heap lexer buffer. This is an incomplete fix of CVE-2025-11683, on a lexer path the earlier fix did not cover.
Any caller that runs Load or LoadFile on an untrusted document with a block scalar at a document boundary reaches the over-read.
- References