CVE-2026-120455EPSS p1.9%

CVE-2026-120455CVE-2026-120455

Description

rapidyaml through 0.16.0 contains an out-of-bounds write vulnerability in ParseEngine::_add_annotation() that allows attackers to corrupt memory by supplying YAML with excess anchors or tags. Attackers can submit YAML with consecutive anchors or tags to overflow the fixed two-element annotation array in release builds, corrupting stack memory and crashing the process.

Scoring

CVSS 6.1 ()
VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
EPSS0.12% probability of exploitation · percentile 1.9% · 2026-11-03T12:00:27Z
Last modified2026-11-02
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.