CVE-2026-88359
NONE—CVSS v3
—CVSS v2
—
EPSS (exploit probability)
—CWE
Description
libfyaml 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.
Affected routers (0)
No routers currently mapped to this CVE in our database.