Dashboard / CVE-2026-5052

CVE-2026-5052

HIGH
MEDIUM Priority: 0.03 BB Relevance: 77/100
Published: 2026-04-17 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Changed
C: High
I: None
A: None

Description

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
hashicorp vault 1.14.0 – 1.19.16
hashicorp vault 1.14.0 – 2.0.0
hashicorp vault 1.20.0 – 1.20.10
hashicorp vault 1.21.0 – 1.21.5

References & Advisories (1)

Bug Bounty Relevance

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

CVSS Score

8.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS — Exploitation Probability

0.34%
Raw Score 0.003450
Percentile 28.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00345
2026-10-28
0.00345

Intelligence Sources

nvd ref →

External Links