# symfony/yaml (Packagist) vulnerabilities Source: https://junglewise.ai/threats/technologies/symfony-yaml Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/symfony-yaml.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 6 vulnerabilities in symfony/yaml (Packagist): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-109413, was published on 15 October 2026. 1 vulnerability in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 1 - All time: 6 (0 critical, 0 exploited in the wild) ## About symfony/yaml (Packagist) A PHP component that parses and dumps YAML files. ## Latest symfony/yaml (Packagist) vulnerabilities - [CVE-2026-109413: Symfony YAML stack exhaustion in inline lexer](https://junglewise.ai/threats/cve-2026-109413-in-symfony-yaml-prior-to-versions-5-4-54-6-4-45-7-4-18-and-8-1-6) (high, CVSS 4, published 15 Oct 2026) - [CVE-2026-45305: Symfony Yaml ReDoS in Parser cleanup](https://junglewise.ai/threats/cve-2026-45305-symfony-yaml-redos-in-parser-cleanup) (medium, CVSS 4, published 14 Jul 2026) - [CVE-2026-45304: Symfony Yaml denial of service via recursive alias expansion](https://junglewise.ai/threats/cve-2026-45304-symfony-yaml-denial-of-service-via-recursive-alias-expansion) (medium, CVSS 4, published 14 Jul 2026) - [CVE-2026-45133: Symfony Yaml uncontrolled recursion in parser](https://junglewise.ai/threats/cve-2026-45133-symfony-yaml-uncontrolled-recursion-in-parser) (medium, CVSS 4, published 14 Jul 2026) - [CVE-2013-1348: Symphony Vulnerable to PHP Code Injection via YAML Parsing](https://junglewise.ai/threats/cve-2013-1348-symphony-vulnerable-to-php-code-injection-via-yaml-parsing) (info, published 17 May 2022) - [CVE-2013-1397: Symfony Arbitrary PHP code Execution](https://junglewise.ai/threats/cve-2013-1397-symfony-arbitrary-php-code-execution) (info, published 17 May 2022) ## Most severe symfony/yaml (Packagist) vulnerabilities - [CVE-2026-109413: Symfony YAML stack exhaustion in inline lexer](https://junglewise.ai/threats/cve-2026-109413-in-symfony-yaml-prior-to-versions-5-4-54-6-4-45-7-4-18-and-8-1-6) (high, CVSS 4, published 15 Oct 2026) - [CVE-2026-45305: Symfony Yaml ReDoS in Parser cleanup](https://junglewise.ai/threats/cve-2026-45305-symfony-yaml-redos-in-parser-cleanup) (medium, CVSS 4, published 14 Jul 2026) - [CVE-2026-45304: Symfony Yaml denial of service via recursive alias expansion](https://junglewise.ai/threats/cve-2026-45304-symfony-yaml-denial-of-service-via-recursive-alias-expansion) (medium, CVSS 4, published 14 Jul 2026) - [CVE-2026-45133: Symfony Yaml uncontrolled recursion in parser](https://junglewise.ai/threats/cve-2026-45133-symfony-yaml-uncontrolled-recursion-in-parser) (medium, CVSS 4, published 14 Jul 2026) - [CVE-2013-1348: Symphony Vulnerable to PHP Code Injection via YAML Parsing](https://junglewise.ai/threats/cve-2013-1348-symphony-vulnerable-to-php-code-injection-via-yaml-parsing) (info, published 17 May 2022) - [CVE-2013-1397: Symfony Arbitrary PHP code Execution](https://junglewise.ai/threats/cve-2013-1397-symfony-arbitrary-php-code-execution) (info, published 17 May 2022) ## Vulnerabilities per week 1 vulnerability in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 1 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Packagist technologies - [moodle/moodle (Packagist)](https://junglewise.ai/threats/technologies/moodle-moodle): 434 vulnerabilities - [magento/community-edition (Packagist)](https://junglewise.ai/threats/technologies/packagist-magento-community-edition): 362 vulnerabilities - [typo3/cms (Packagist)](https://junglewise.ai/threats/technologies/packagist-typo3-cms): 187 vulnerabilities - [wwbn/avideo (Packagist)](https://junglewise.ai/threats/technologies/wwbn-avideo): 164 vulnerabilities - [magento/project-community-edition (Packagist)](https://junglewise.ai/threats/technologies/magento-project-community-edition): 161 vulnerabilities - [drupal/core (Packagist)](https://junglewise.ai/threats/technologies/packagist-drupal-core): 150 vulnerabilities - [pimcore/pimcore (Packagist)](https://junglewise.ai/threats/technologies/pimcore-pimcore): 145 vulnerabilities - [craftcms/cms (Packagist)](https://junglewise.ai/threats/technologies/craftcms-cms): 143 vulnerabilities - [dolibarr/dolibarr (Packagist)](https://junglewise.ai/threats/technologies/dolibarr-dolibarr): 127 vulnerabilities - [getgrav/grav (Packagist)](https://junglewise.ai/threats/technologies/getgrav-grav): 127 vulnerabilities - [typo3/cms-core (Packagist)](https://junglewise.ai/threats/technologies/typo3-cms-core): 127 vulnerabilities - [concrete5/concrete5 (Packagist)](https://junglewise.ai/threats/technologies/concrete5-concrete5): 122 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "symfony/yaml (Packagist) vulnerabilities", https://junglewise.ai/threats/technologies/symfony-yaml, 9 November 2026.