No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
Description
Kvazaar through 2.3.2 contains an infinite loop vulnerability in read_header() in src/encmain.c that allows attackers to hang the command-line encoder by supplying a truncated Y4M header. Attackers can provide a crafted .y4m file lacking a terminating newline, causing unchecked EOF reads that hang the process indefinitely while consuming a full CPU core.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 02 Nov 2026
- Last modified upstream: 07 Nov 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- https://github.com/ultravideo/kvazaar/blob/v2.3.2/src/encmain.c#L339-L357
- https://github.com/ultravideo/kvazaar/commit/8a2f109be283e87008c679d635966cc034da39c6
- https://github.com/ultravideo/kvazaar/issues/452
- https://github.com/ultravideo/kvazaar/releases/tag/v2.3.2
- https://hackmd.io/@haindpwn/kvazaar-y4m-header-missing-newline-infinite-loop
- https://www.vulncheck.com/advisories/kvazaar-through-2.3.2-infinite-loop-dos-via-y4m-header-parser
- https://hackmd.io/@haindpwn/cve-2026-120458-kvazaar-y4m-header-missing-newline-infinite-loop
- Analysis, summary and remediation
- © VulnCrest