CVE-2025-1293

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

At a glance

Severity: HIGH 8.2
EPSS: EPSS 0.35 % · percentile 28 (2026-10-27)
State: PUBLISHED
Published: 2025-02-20
Updated: 2025-02-20
Assigner: HashiCorp
NVD status: Analyzed

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 8.2	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N	HashiCorp
CVSS 3.1	HIGH 8.2	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N	NVD · security@hashicorp.com (Secondary)
CVSS 3.1	HIGH 8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-1390

Advisories

GHSA-vxm9-8mfw-vc6g — Hermes improperly validates a JWT
GO-2025-3475 — Hermes improperly validates a JWT in github.com/hashicorp-forge/hermes

European references

ENISA EUVD · EUVD-2025-4584
GCVE · GCVE-0-2025-1293

Affected configurations (NVD CPE)

cpe:2.3:a:hashicorp:hermes:*:*:*:*:*:*:*:* < 0.5.0

Affected products

Product	Versions
HashiCorp · Tooling	affected 0 < 0.5.0

References

https://discuss.hashicorp.com/t/hcsec-2025-03-hashicorp-hermes-improperly-validates-aws-alb-jwts-which-may-lead-to-authentication-bypass/73371

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD