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WS-2023-0140

Date: August 19, 2025

In the package in-toto up to 1.4.0, the PGP trust model is not (fully) considered: PGP Key Creation Time Not Validated, and PGP Key Usage Flags and PGP Key Revocation are not considered. The preferred mitigation strategy is to verify these properties when exporting a public key from GnuPG, and to clarify usage documentation that no verification against the PGP trust model is performed afterwards. This mitigation addresses all 3 issues of this vulnerability.

Language: Python

Severity Score

Related Resources (6)

https://github.com/advisories/GHSA-jjgp-whrp-gq8m
https://github.com/in-toto/in-toto/security/advisories/GHSA-jjgp-whrp-gq8m
https://github.com/in-toto/in-toto
https://github.com/secure-systems-lab/securesystemslib/issues/190
https://github.com/in-toto/in-toto/issues/569
https://www.mend.io/vulnerability-database/WS-2023-0140

Severity Score

Weakness Type (CWE)

Improper Certificate Validation

CWE-295

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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