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SCA: security update for joserfc (GHSA-frfh-8v73-gjg4)

critical Tenable Self-Hosted Container Security Plugin ID 436091

Description

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

 - joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption
 (JOSE) standards. In versions from 1.3.3 to before 1.3.5 and from 1.4.0 to before 1.4.2, the
 ExceededSizeError exception messages are embedded with non-decoded JWT token parts and may cause Python
 logging to record an arbitrarily large, forged JWT payload. In situations where a misconfigured — or
 entirely absent — production-grade web server sits in front of a Python web application, an attacker may
 be able to send arbitrarily large bearer tokens in the HTTP request headers. When this occurs, Python
 logging or diagnostic tools (e.g., Sentry) may end up processing extremely large log messages containing
 the full JWT header during the joserfc.jwt.decode() operation. The same behavior also appears when
 validating claims and signature payload sizes, as the library raises joserfc.errors.ExceededSizeError()
 with the full payload embedded in the exception message. Since the payload is already fully loaded into
 memory at this stage, the library cannot prevent or reject it. This issue has been patched in versions
 1.3.5 and 1.4.2. (CVE-2025-65015)

See Also

https://github.com/advisories/GHSA-frfh-8v73-gjg4

Plugin Details

Severity: Critical

ID: 436091

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 11/18/2025

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: Critical

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2025-65015

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 8.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/18/2025

Vulnerability Publication Date: 11/18/2025

Reference Information

CVE: CVE-2025-65015

cwe: CWE-770