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SCA: security update for github.com/sigstore/timestamp-authority (GHSA-4qg8-fj49-pxjh)

high Tenable Cloud Security Plugin ID 436265

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.0.3, Function
 api.ParseJSONRequest currently splits (via a call to strings.Split) an optionally-provided OID (which is
 untrusted data) on periods. Similarly, function api.getContentType splits the Content-Type header (which
 is also untrusted data) on an application string. As a result, in the face of a malicious request with
 either an excessively long OID in the payload containing many period characters or a malformed Content-
 Type header, a call to api.ParseJSONRequest or api.getContentType incurs allocations of O(n) bytes (where
 n stands for the length of the function's argument). This vulnerability is fixed in 2.0.3.
 (CVE-2025-66564)

See Also

https://github.com/advisories/GHSA-4qg8-fj49-pxjh

Plugin Details

Severity: High

ID: 436265

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 12/5/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-66564

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/5/2025

Vulnerability Publication Date: 12/4/2025

Reference Information

CVE: CVE-2025-66564

cwe: CWE-405