Cyber Resilience

CVE-2026-12958

High

Published: 23 June 2026

Published
23 June 2026
Modified
23 June 2026
KEV Added
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Patch
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CVSS Score v4 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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 Score 0.0014 3.9th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-12958 is a high-severity UNIX Symbolic Link (Symlink) Following (CWE-61) vulnerability in Amazon (inferred from references). Its CVSS base score is 8.5 (High).

Operationally, ranked at the 3.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability details

Missing symlink validation in Language Servers for AWS may allow an arbitrary file write outside of the workspace trust boundary. This may occur when a local user opens a workspace with a maliciously crafted symlink that resolves to a file…

more

path outside the workspace trust boundary. To remediate this issue, users should upgrade to version 1.69.0 or higher.

CWE(s)
CWE-61

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

Affected Assets

Amazon
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References