CVE-2025-1293
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedHermes 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceHermes versions up to 0.4.0 improperly validated JWT tokens provided by AWS Application Load Balancer (ALB) authentication mode, potentially allowing attackers to bypass authentication by presenting a malformed or crafted JWT.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 0.5.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Determine Hermes versionRun 'hermes --version' or check the version displayed in the Hermes UI login page footer, or inspect the Docker/container image tag if running in a containerAffected if version is 0.4.0 or earlier (any version below 0.5.0)
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Identify if ALB authentication is enabledExamine Hermes configuration files for AWS ALB authentication settings; check environment variables or deployment configuration for ALB_OIDC_* or ALB_JWT_* parametersAffected if AWS ALB authentication mode is configured and active for the Hermes instance
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Verify JWT validation behaviorReview application logs for any JWT validation errors or warnings during authentication attempts; test by attempting to authenticate with a malformed JWT token and observing if it is acceptedAffected if malformed JWT tokens are accepted without proper validation rejection
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Check deployment configurationInspect the deployment manifests (Kubernetes YAML, Terraform, or Docker Compose) to identify whether ALB integration is used for user authenticationAffected if deployment uses AWS ALB with authentication integration for Hermes access
A user is affected if Hermes version is below 0.5.0 AND AWS ALB authentication is configured as the authentication mechanism
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped0.5.0
Upgrade Hermes to version 0.5.0 or later to obtain the corrected JWT validation logic.
Hermes 0.5.0
- Upgrade Hermes to version 0.5.0 or later to resolve the JWT validation vulnerability
- If using AWS ALB authentication mode, verify the upgrade is successfully deployed and test authentication functionality
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,512.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-1293 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-1293 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data