joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. Prior to 1.7.6, joserfc compact JWS deserialization calls bytes.split() before enforcing the existing aggregate segment-size limits. When attacker-controlled compact serialization bytes reach deserialize_compact(), the split creates copies of the header, payload, and signature segments before ExceededSizeError rejects them, causing an additional allocation approximately proportional to the supplied token. Requests that exhaust available process memory can therefore cause an availability failure even though signature verification fails. This issue is fixed in version 1.7.6.

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. Prior to 1.7.6, joserfc compact JWS deserialization calls bytes.split() before enforcing
    the existing aggregate segment-size limits. When attacker-controlled compact serialization bytes reach
    deserialize_compact(), the split creates copies of the header, payload, and signature segments before
    ExceededSizeError rejects them, causing an additional allocation approximately proportional to the
    supplied token. Requests that exhaust available process memory can therefore cause an availability failure
    even though signature verification fails. This issue is fixed in version 1.7.6. (CVE-2026-119284)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption     (JOSE) standards. Prior to 1.7.6, joserfc compact JWS deserialization calls bytes.split() before enforcing     the existing aggregate segment-size limits. When attacker-controlled compact serialization bytes reach     deserialize_compact(), the split creates copies of the header, payload, and signature segments before     ExceededSizeError rejects them, causing an additional allocation approximately proportional to the     supplied token. Requests that exhaust available process memory can therefore cause an availability failure     even though signature verification fails. This issue is fixed in version 1.7.6. (CVE-2026-119284)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
478024	SCA: security update for joserfc (GHSA-9pg5-8c7x-5hfx)	Tenable Cloud Security	SCA Checks	Local	medium
478024	SCA: security update for joserfc (GHSA-9pg5-8c7x-5hfx)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
374246	Linux Distros Unpatched Vulnerability : CVE-2026-119284	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-119284

medium

Tenable Plugins

medium

medium

medium