header. If signer matches the configured ARN, kid is appended to
alb_base_url without URL encoding or path sanitization, and the HTTP GET
is issued before signature verification. This allows an attacker to force
the server to send a GET request to an attacker-chosen internal path.
This issue was fixed in version 2.3.0
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OpenIDC | liboauth2 | unaffected |
|
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No vendor fix or workaround currently provided.
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Thu, 02 Jul 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
Thu, 02 Jul 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | liboauth2 is vulnerable to Server-Side Request Forgery in oauth2_jose_jwks_aws_alb_resolve() function. The AWS ALB verifier reads both signer and kid from the unverified JWT header. If signer matches the configured ARN, kid is appended to alb_base_url without URL encoding or path sanitization, and the HTTP GET is issued before signature verification. This allows an attacker to force the server to send a GET request to an attacker-chosen internal path. This issue was fixed in version 2.3.0 | |
| Title | Server-Site Request Forgery in liboauth2 | |
| Weaknesses | CWE-918 | |
| References |
| |
| Metrics |
cvssV4_0
|
Subscriptions
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MITRE
Status: PUBLISHED
Assigner: CERT-PL
Published:
Updated: 2026-07-02T10:45:00.888Z
Reserved: 2026-06-15T13:08:01.056Z
Link: CVE-2026-54430
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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