Dashboard / CVE-2026-123562

CVE-2026-123562

HIGH
MEDIUM Priority: 0.03 BB Relevance: 77/100
Published: 2026-11-08 Modified: 2026-11-12 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: None
VI: None
VA: High

Description

devalue (sveltejs/devalue) 5.8.0 before 5.9.3 contains an unhandled promise rejection in stringifyAsync: when serializing multiple promises, a later promise rejecting before an earlier one settles leaves an internal rejection unhandled, even if the caller catches the returned promise. An attacker able to influence the timing or failure of serialized asynchronous values can terminate the Node.js process.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
sveltejs devalue 5.8.0 < 5.9.3
sveltejs devalue 5.8.0 < 5.9.3

References & Advisories (2)

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.34%
Raw Score 0.003430
Percentile 28.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00343
2026-11-12
0.00343
2026-11-10
0.00343
2026-11-09
0.00343
2026-11-08
0.00343

Intelligence Sources

mitre ref →
nvd ref →

External Links