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VulnerabilityPublished

CVE-2025-6015: HashiCorp Vault · Improper Restriction of Excessive Authentication Attempts

Affects HashiCorp VaultSource CVE Database V5

0

Not known to be exploited · CVSS 5.7 Medium · fixed in 1.20.1 : update HashiCorp Vault when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
5.7Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.20.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
HashiCorp VaultAffected
  • =1.10.0
Fixed in–

AI-suggested

Upgrade to Vault Community Edition 1.20.1 or Vault Enterprise versions 1.20.1, 1.19.7, 1.18.12, or 1.16.23 where this vulnerability is fixed. No other mitigation or temporary workaround is indicated in the vendor advisory.

Description

CVE-2025-6015 is a medium severity vulnerability in HashiCorp Vault and Vault Enterprise that allows bypassing login MFA rate limits and reusing TOTP tokens. This improper restriction of excessive authentication attempts could enable attackers to attempt multiple authentication tries without being blocked. The issue is fixed in Vault Community Edition 1.20.1 and Vault Enterprise versions 1.20.1, 1.19.7, 1.18.12, and 1.16.23.

References

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