VulnerableCode Package Details - pkg:composer/symfony/security@5.0.0

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Vulnerability	Summary	Fixed by
VCID-e71e-d4tr-wqgz Aliases: CVE-2021-21424 GHSA-5pv8-ppvj-4h68	Prevent user enumeration using Guard or the new Authenticator-based Security Description ----------- The ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not. It was also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticating a non-existing user. Resolution ---------- We now ensure that 403s are returned whether the user exists or not if the password is invalid or if the user does not exist. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011) for branch 3.4. Credits ------- I would like to thank James Isaac and Mathias Brodala for reporting the issue and Robin Chalas for fixing the issue.	5.2.8 Affected by 0 other vulnerabilities.
VCID-grxm-dpcv-37d9 Aliases: CVE-2020-5275 GHSA-g4m9-5hpf-hx72	Firewall configured with unanimous strategy was not actually unanimous in Symfony Description ----------- On Symfony before 4.4.0, when a `Firewall` checks an access control rule (using the unanimous strategy), it iterates over all rule attributes and grant access only if all calls to the `accessDecisionManager` decide to grant access. As of Symfony 4.4.0, a bug was introduced that prevents the check of attributes as soon as `accessDecisionManager` decide to grant access on one attribute. Resolution ---------- The `accessDecisionManager` is now called with all attributes at once, allowing the unanimous strategy being applied on each attribute. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/c935e4a3fba6cc2ab463a6ca382858068d63cebf) for the 4.4 branch. Credits ------- I would like to thank Antonio J. García Lagar for reporting & Robin Chalas for fixing the issue.	5.0.7 Affected by 0 other vulnerabilities.

Vulnerability

Summary

Fixed by

VCID-e71e-d4tr-wqgz
Aliases:
CVE-2021-21424
GHSA-5pv8-ppvj-4h68

Prevent user enumeration using Guard or the new Authenticator-based Security Description ----------- The ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not. It was also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticating a non-existing user. Resolution ---------- We now ensure that 403s are returned whether the user exists or not if the password is invalid or if the user does not exist. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011) for branch 3.4. Credits ------- I would like to thank James Isaac and Mathias Brodala for reporting the issue and Robin Chalas for fixing the issue.

5.2.8
Affected by 0 other vulnerabilities.

VCID-grxm-dpcv-37d9
Aliases:
CVE-2020-5275
GHSA-g4m9-5hpf-hx72

Firewall configured with unanimous strategy was not actually unanimous in Symfony Description ----------- On Symfony before 4.4.0, when a `Firewall` checks an access control rule (using the unanimous strategy), it iterates over all rule attributes and grant access only if *all* calls to the `accessDecisionManager` decide to grant access. As of Symfony 4.4.0, a bug was introduced that prevents the check of attributes as soon as `accessDecisionManager` decide to grant access on one attribute. Resolution ---------- The `accessDecisionManager` is now called with all attributes at once, allowing the unanimous strategy being applied on each attribute. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/c935e4a3fba6cc2ab463a6ca382858068d63cebf) for the 4.4 branch. Credits ------- I would like to thank Antonio J. García Lagar for reporting & Robin Chalas for fixing the issue.

5.0.7
Affected by 0 other vulnerabilities.

Vulnerability	Summary	Aliases
This package is not known to fix vulnerabilities.

Vulnerability

Summary

Aliases

This package is not known to fix vulnerabilities.

Date	Actor	Action	Vulnerability	Source	VulnerableCode Version
2026-04-02T16:56:40.145546+00:00	GHSA Importer	Affected by	VCID-e71e-d4tr-wqgz	https://github.com/advisories/GHSA-5pv8-ppvj-4h68	38.1.0
2026-04-02T12:38:23.971388+00:00	GitLab Importer	Affected by	VCID-e71e-d4tr-wqgz	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/security/CVE-2021-21424.yml	38.0.0
2026-04-02T12:36:34.807745+00:00	GitLab Importer	Affected by	VCID-grxm-dpcv-37d9	https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/security/CVE-2020-5275.yml	38.0.0
2026-04-01T15:58:02.105179+00:00	GHSA Importer	Affected by	VCID-grxm-dpcv-37d9	https://github.com/advisories/GHSA-g4m9-5hpf-hx72	38.0.0