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WS-2023-0177

Date: August 19, 2025

github.com/lestrrat-go/jwx vulnerable to Potential Padding Oracle Attack

Language: Go

Severity Score

Related Resources (7)

https://github.com/lestrrat-go/jwx/commit/6c41e3822485fc7e11dd70b4b0524b075d66b103
https://github.com/lestrrat-go/jwx/blob/8840ffd4afc5839f591ff0e9ba9034af52b1643e/jwe/internal/aescbc/aescbc.go#L210-L213
https://github.com/lestrrat-go/jwx/security/advisories/GHSA-rm8v-mxj3-5rmq
https://github.com/lestrrat-go/jwx/blob/796b2a9101cf7e7cb66455e4d97f3c158ee10904/jwe/internal/aescbc/aescbc.go#L33-L66
https://github.com/lestrrat-go/jwx/commit/d9ddbc8e5009cfdd8c28413390b67afa7f576dd6
https://github.com/lestrrat-go/jwx
https://www.mend.io/vulnerability-database/WS-2023-0177

Severity Score

Weakness Type (CWE)

Observable Timing Discrepancy

CWE-208

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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