CVE-2026-88359

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-88359
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 14:18:18 UTC
Updated2026-09-24 21:08:55 UTC
Descriptionlibfyaml 0.9.6 contains a stack exhaustion vulnerability in fy_atom_iter_format(). When processing a specially crafted YAML document containing a very large literal or folded block scalar, the function repeatedly grows an internal buffer using alloca() inside a loop. The allocated stack memory is not released until the function returns, causing cumulative stack growth that can exceed the process stack limit and result in SIGSEGV and denial of service.

Risk And Classification

Problem Types: n/a

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
github.com/pantoniou/libfyaml/commit/20502068902d58c076da873117985798df2... [email protected] github.com
github.com/pantoniou/libfyaml/issues/315 [email protected] github.com
github.com/pantoniou/libfyaml/commit/93741a7c9331da9da65ef7a25f2d7d6a817... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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