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Vulnerability details: VCID-r7t3-q914-yuay
Vulnerability ID VCID-r7t3-q914-yuay
Aliases CVE-2024-51996
GHSA-cg23-qf8f-62rr
Summary Symfony has an Authentication Bypass via RememberMe When consuming a persisted remember-me cookie, Symfony does not check if the username persisted in the database matches the username attached with the cookie, leading to authentication bypass.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-287 Improper Authentication
CWE-289 Authentication Bypass by Alternate Name
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2024-51996
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2024-51996
epss 0.00088 https://api.first.org/data/v1/epss?cve=CVE-2024-51996
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2024-51996.yaml
cvssv4 8.7 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2024-51996.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2024-51996.yaml
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-51996.yaml
cvssv4 8.7 https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-51996.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-51996.yaml
cvssv3.1 7.5 https://github.com/symfony/symfony
cvssv4 8.7 https://github.com/symfony/symfony
generic_textual HIGH https://github.com/symfony/symfony
cvssv3.1 7.5 https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
cvssv4 8.7 https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
generic_textual HIGH https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
ssvc Track https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
cvssv3.1 7.5 https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
cvssv4 8.7 https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
generic_textual HIGH https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
ssvc Track https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2024-51996
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2024-51996
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2024-51996
cvssv3.1 7.5 https://symfony.com/cve-2024-51996
cvssv4 8.7 https://symfony.com/cve-2024-51996
generic_textual HIGH https://symfony.com/cve-2024-51996
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2024-51996
https://github.com/symfony/symfony
https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
CVE-2024-51996 https://nvd.nist.gov/vuln/detail/CVE-2024-51996
CVE-2024-51996 https://symfony.com/cve-2024-51996
CVE-2024-51996.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2024-51996.yaml
CVE-2024-51996.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-51996.yaml
GHSA-cg23-qf8f-62rr https://github.com/advisories/GHSA-cg23-qf8f-62rr
GHSA-cg23-qf8f-62rr https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
USN-7272-1 https://usn.ubuntu.com/7272-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2024-51996.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2024-51996.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

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low

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none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-51996.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2024-51996.yaml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/symfony/symfony
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/symfony/symfony
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-13T18:49:11Z/ Found at https://github.com/symfony/symfony/commit/81354d392c5f0b7a52bcbd729d6f82501e94135a
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-11-13T18:49:11Z/ Found at https://github.com/symfony/symfony/security/advisories/GHSA-cg23-qf8f-62rr
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2024-51996
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2024-51996
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://symfony.com/cve-2024-51996
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://symfony.com/cve-2024-51996
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.25313
EPSS Score 0.00088
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:22:37.069815+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/symfony/security-http/CVE-2024-51996.yml 38.6.0