Dashboard / CVE-2026-120455

CVE-2026-120455

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-11-02 Modified: 2026-11-09 First seen: 2026-11-02 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Passive
AT: None
VC: None
VI: Low
VA: High

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
biojppm rapidyaml 0
biojppm rapidyaml 0

References & Advisories (8)

Bug Bounty Relevance

39 / 100
✓ No authentication
✓ Low complexity

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.12%
Raw Score 0.001210
Percentile 2.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00121
2026-11-12
0.00121
2026-11-10
0.00121
2026-11-09
0.00121
2026-11-08
0.00121
2026-11-07
0.00121
2026-11-06
0.00121
2026-11-05
0.00121
2026-11-04
0.00121
2026-11-03
0.00121

Intelligence Sources

mitre ref →
nvd ref →

External Links