{"id":"AZL-91679","summary":"CVE-2026-54430 affecting package liboauth 1.0.3-15","details":"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\nheader. If signer matches the configured ARN, kid is appended to\nalb_base_url without URL encoding or path sanitization, and the HTTP GET\nis issued before signature verification. This allows an attacker to force\nthe server to send a GET request to an attacker-chosen internal path.\n\nThis issue was fixed in version 2.3.0","modified":"2026-08-30T05:24:52Z","published":"2026-07-02T11:16:16Z","upstream":["CVE-2026-54430"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54430"}],"affected":[{"package":{"name":"liboauth","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/liboauth"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.0.3-15"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-91679.json"}}],"schema_version":"1.9.0"}