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CVE-2025-1293

HashiCorp Hermes Improperly Validates AWS ALB JWTs, which May Lead to Authentication Bypass

HIGH
8.2
CVSS Score
Published: February 20, 2025 at 12:28 AM UTC
Updated: June 17, 2026 at 08:38 AM UTC
1 product affected across 1 vendorHermes

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Severity
HIGH8.2
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Hermes versions up to 0.4.0 improperly validated the JWT provided when using the AWS ALB authentication mode, potentially allowing for authentication bypass. This vulnerability, CVE-2025-1293, was fixed in Hermes 0.5.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Hermes· Hashicorp
95%
v < 0.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://discuss.hashicorp.com/t/hcsec-2025-03-hashicorp-hermes-improperly-validates-aws-alb-jwts-which-may-lead-to-authentication-bypass/73371

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHHashiCorp
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1390

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