Detections
Analytics

SCA: security update for symfony/symfony, symfony/yaml (GHSA-c2p3-7m5p-cv8x)

high Tenable Self-Hosted Container Security Plugin ID 442409

Description

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

 - Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to
 5.4.52, 6.4.40, 7.4.12, and 8.0.12, when the parser is exposed to attacker-controlled input, deeply nested
 mappings or sequences cause both the block-level (Parser::parseBlock()) and inline
 (Inline::parseSequence() / Inline::parseMapping()) parsers to recurse without a depth limit. A crafted
 document exhausts the PHP stack and crashes the worker. This issue is fixed in versions 5.4.52, 6.4.40,
 7.4.12, and 8.0.12. (CVE-2026-45133)

Solution

Update the symfony/symfony library and its related packages to version 5.4.52 or later.

See Also

https://github.com/advisories/GHSA-c2p3-7m5p-cv8x

Plugin Details

Severity: High

ID: 442409

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 5/28/2026

Updated: 7/16/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.77

Vendor

Vendor Severity: Low

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-2026-45133

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

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/27/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-45133