Medium severity5.5NVD Advisory· Published Nov 2, 2026
CVE-2026-120458
CVE-2026-120458
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.
Affected products
1- Range: <=2.3.2
Patches
Vulnerability mechanics
References
6- github.com/ultravideo/kvazaar/blob/v2.3.2/src/encmain.cnvd
- github.com/ultravideo/kvazaar/commit/8a2f109be283e87008c679d635966cc034da39c6nvd
- github.com/ultravideo/kvazaar/issues/452nvd
- github.com/ultravideo/kvazaar/releases/tag/v2.3.2nvd
- hackmd.io/@haindpwn/kvazaar-y4m-header-missing-newline-infinite-loopnvd
- www.vulncheck.com/advisories/kvazaar-through-2.3.2-infinite-loop-dos-via-y4m-header-parsernvd
News mentions
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