DEBIAN-CVE-2026-123746

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Source
https://security-tracker.debian.org/tracker/CVE-2026-123746
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123746.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-123746
Upstream
Published
2026-11-06T13:17:29Z
Modified
2026-11-07T05:00:06Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

The Symfony Security HTTP component AuthenticatorManager::authenticateUser() does not run the firewall user checker’s checkPostAuth() method when a user is authenticated programmatically, allowing an account rejected by a custom user checker, such as an expired account, to be authenticated in Symfony versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11. AuthenticatorManager::authenticateUser() is used by UserAuthenticatorInterface::authenticateUser() and by the SecurityBundle’s Security::login() to authenticate a user programmatically, but it does not dispatch the security.authentication.success event, on which checkPostAuth() runs. The fix for CVE-2024-50341 made Security::login() call checkPreAuth(), but checkPostAuth() was still skipped. As a result, an account rejected by a custom user checker in checkPostAuth() is refused by form login and the other authenticators of the firewall, but can still be authenticated programmatically. Applications are affected when they use a custom user checker that rejects users in checkPostAuth() and authenticate users programmatically, for example after a password reset or an e-mail verification link. A user whose account is rejected can then obtain an authenticated session through that flow. The default user checker does nothing in checkPostAuth(), so the default configuration is not affected. The fix makes AuthenticatorManager::authenticateUser() dispatch the security.authentication.success event once the token is created and before it is stored, as authentications through the firewall do, so that checkPostAuth() runs and can reject the user.

References

Affected packages

Debian:12 / symfony

Package

Name
symfony
Purl
pkg:deb/debian/symfony?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.4.23+dfsg-1
5.4.23+dfsg-1+deb12u1
5.4.23+dfsg-1+deb12u2
5.4.23+dfsg-1+deb12u3
5.4.23+dfsg-1+deb12u4
5.4.23+dfsg-1+deb12u5
5.4.24+dfsg-1
5.4.25+dfsg-1
5.4.27+dfsg-1
5.4.28+dfsg-1
5.4.29+dfsg-1
5.4.30+dfsg-1
5.4.31+dfsg-1
5.4.31+dfsg-2
5.4.32+dfsg-1
5.4.33+dfsg-1
5.4.34+dfsg-1
5.4.34+dfsg-2
5.4.35+dfsg-1
5.4.35+dfsg-2
5.4.35+dfsg-3
5.4.52+dfsg-0+deb12u1
5.4.53+dfsg-0+deb12u1
6.*
6.3.0~rc1+dfsg-1
6.3.0~rc2+dfsg-1
6.3.0+dfsg-1
6.3.1+dfsg-1
6.3.3+dfsg-1
6.3.4+dfsg-1
6.3.5+dfsg-1
6.3.6+dfsg-1
6.3.7+dfsg-1
6.4.0~beta2+dfsg-1
6.4.0~beta3+dfsg-1
6.4.0~rc1+dfsg-1
6.4.0~rc2+dfsg-1
6.4.0+dfsg-1
6.4.1+dfsg-1
6.4.2+dfsg-1
6.4.3+dfsg-1
6.4.4+dfsg-1
6.4.4+dfsg-2
6.4.4+dfsg-3
6.4.4+dfsg-4
6.4.5+dfsg-1
6.4.5+dfsg-2
6.4.5+dfsg-3
6.4.5+dfsg-4
6.4.6+dfsg-1
6.4.7+dfsg-1
6.4.9+dfsg-1
6.4.10+dfsg-1
6.4.11+dfsg-1
6.4.12+dfsg-1
6.4.13+dfsg-1
6.4.14+dfsg-1
6.4.15+dfsg-1
6.4.16+dfsg-1
6.4.16+dfsg-2
6.4.17+dfsg-1
6.4.17+dfsg-2
6.4.17+dfsg-3
6.4.17+dfsg-4
6.4.17+dfsg-5
6.4.17+dfsg-6
6.4.18+dfsg-1
6.4.19+dfsg-1
6.4.19+dfsg-2
6.4.20+dfsg-1
6.4.20+dfsg-2
6.4.21+dfsg-1
6.4.21+dfsg-2
6.4.24+dfsg-1
6.4.25+dfsg-1
7.*
7.0.4+dfsg-1
7.0.5+dfsg-1
7.0.6+dfsg-1
7.0.7+dfsg-1
7.1.0~beta1+dfsg-1
7.1.0~rc1+dfsg-1
7.1.2+dfsg-1
7.1.3+dfsg-1
7.1.4+dfsg-1
7.1.5+dfsg-1
7.2.0~beta1+dfsg-1
7.2.0~beta2+dfsg-1
7.2.0~rc1+dfsg-1
7.2.1+dfsg-1
7.2.2+dfsg-1
7.2.3+dfsg-1
7.2.4+dfsg-1
7.2.5+dfsg-1
7.2.6-1
7.3.0~beta1+dfsg-1
7.3.0~beta2+dfsg-1
7.3.0~rc1+dfsg-1
7.3.0+dfsg-1
7.3.1+dfsg-1
7.3.2+dfsg-1
7.3.3+dfsg-1
7.3.4+dfsg-1
7.3.5-1
7.4.0~beta1-1
7.4.0~beta1-2
7.4.0~beta2+dfsg-1
7.4.0~beta2+dfsg-2
7.4.0~beta2+dfsg-3
7.4.0~rc1+dfsg-1
7.4.0~rc2+dfsg-1
7.4.0~rc3+dfsg-1
7.4.0+dfsg-1
7.4.0+dfsg-2
7.4.2+dfsg-1
7.4.2+dfsg-2
7.4.3+dfsg-1
7.4.4+dfsg-1
7.4.5+dfsg-1
7.4.6+dfsg-1
7.4.6+dfsg-2
7.4.7+dfsg-1
7.4.8+dfsg-1
7.4.9+dfsg-1
7.4.10+dfsg-1
7.4.12+dfsg-1
7.4.13+dfsg-1
7.4.13+dfsg-2
7.4.14+dfsg-1
7.4.15+dfsg-1
7.4.15+dfsg-2
7.4.16+dfsg-1
7.4.17+dfsg-1
7.4.18+dfsg-1
7.4.19+dfsg-1
7.4.20+dfsg-1
7.4.21+dfsg-1
7.4.21+dfsg-2
7.4.22+dfsg-1
7.4.23+dfsg-1
8.*
8.0.0~beta2+dfsg-1
8.0.0~beta2+dfsg-2
8.0.0~rc1+dfsg-1
8.0.0~rc2+dfsg-1
8.0.0~rc3+dfsg-1
8.0.0+dfsg-1
8.0.2+dfsg-1
8.0.3+dfsg-1
8.0.4+dfsg-1
8.0.5+dfsg-1
8.0.6+dfsg-1
8.0.7+dfsg-1
8.0.8+dfsg-1
8.0.9+dfsg-1
8.0.10-1
8.0.11+dfsg-1
8.0.12+dfsg-1
8.0.13+dfsg-1
8.1.0+dfsg-1
8.1.1+dfsg-1
8.1.3+dfsg-1
8.1.4+dfsg-1
8.1.5+dfsg-1
8.1.6+dfsg-1
8.1.7+dfsg-1
8.1.8+dfsg-1
8.1.9+dfsg-1
8.1.10+dfsg-1
8.1.11+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123746.json"

Debian:13 / symfony

Package

Name
symfony
Purl
pkg:deb/debian/symfony?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.4.21+dfsg-2
6.4.21+dfsg-2+deb13u1
6.4.24+dfsg-1
6.4.25+dfsg-1
6.4.40+dfsg-0+deb13u1
6.4.41+dfsg-0+deb13u1
6.4.49+dfsg-0+deb13u1
7.*
7.0.4+dfsg-1
7.0.5+dfsg-1
7.0.6+dfsg-1
7.0.7+dfsg-1
7.1.0~beta1+dfsg-1
7.1.0~rc1+dfsg-1
7.1.2+dfsg-1
7.1.3+dfsg-1
7.1.4+dfsg-1
7.1.5+dfsg-1
7.2.0~beta1+dfsg-1
7.2.0~beta2+dfsg-1
7.2.0~rc1+dfsg-1
7.2.1+dfsg-1
7.2.2+dfsg-1
7.2.3+dfsg-1
7.2.4+dfsg-1
7.2.5+dfsg-1
7.2.6-1
7.3.0~beta1+dfsg-1
7.3.0~beta2+dfsg-1
7.3.0~rc1+dfsg-1
7.3.0+dfsg-1
7.3.1+dfsg-1
7.3.2+dfsg-1
7.3.3+dfsg-1
7.3.4+dfsg-1
7.3.5-1
7.4.0~beta1-1
7.4.0~beta1-2
7.4.0~beta2+dfsg-1
7.4.0~beta2+dfsg-2
7.4.0~beta2+dfsg-3
7.4.0~rc1+dfsg-1
7.4.0~rc2+dfsg-1
7.4.0~rc3+dfsg-1
7.4.0+dfsg-1
7.4.0+dfsg-2
7.4.2+dfsg-1
7.4.2+dfsg-2
7.4.3+dfsg-1
7.4.4+dfsg-1
7.4.5+dfsg-1
7.4.6+dfsg-1
7.4.6+dfsg-2
7.4.7+dfsg-1
7.4.8+dfsg-1
7.4.9+dfsg-1
7.4.10+dfsg-1
7.4.12+dfsg-1
7.4.13+dfsg-1
7.4.13+dfsg-2
7.4.14+dfsg-1
7.4.15+dfsg-1
7.4.15+dfsg-2
7.4.16+dfsg-1
7.4.17+dfsg-1
7.4.18+dfsg-1
7.4.19+dfsg-1
7.4.20+dfsg-1
7.4.21+dfsg-1
7.4.21+dfsg-2
7.4.22+dfsg-1
7.4.23+dfsg-1
8.*
8.0.0~beta2+dfsg-1
8.0.0~beta2+dfsg-2
8.0.0~rc1+dfsg-1
8.0.0~rc2+dfsg-1
8.0.0~rc3+dfsg-1
8.0.0+dfsg-1
8.0.2+dfsg-1
8.0.3+dfsg-1
8.0.4+dfsg-1
8.0.5+dfsg-1
8.0.6+dfsg-1
8.0.7+dfsg-1
8.0.8+dfsg-1
8.0.9+dfsg-1
8.0.10-1
8.0.11+dfsg-1
8.0.12+dfsg-1
8.0.13+dfsg-1
8.1.0+dfsg-1
8.1.1+dfsg-1
8.1.3+dfsg-1
8.1.4+dfsg-1
8.1.5+dfsg-1
8.1.6+dfsg-1
8.1.7+dfsg-1
8.1.8+dfsg-1
8.1.9+dfsg-1
8.1.10+dfsg-1
8.1.11+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123746.json"

Debian:14 / symfony

Package

Name
symfony
Purl
pkg:deb/debian/symfony?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.4.21+dfsg-2
6.4.24+dfsg-1
6.4.25+dfsg-1
7.*
7.0.4+dfsg-1
7.0.5+dfsg-1
7.0.6+dfsg-1
7.0.7+dfsg-1
7.1.0~beta1+dfsg-1
7.1.0~rc1+dfsg-1
7.1.2+dfsg-1
7.1.3+dfsg-1
7.1.4+dfsg-1
7.1.5+dfsg-1
7.2.0~beta1+dfsg-1
7.2.0~beta2+dfsg-1
7.2.0~rc1+dfsg-1
7.2.1+dfsg-1
7.2.2+dfsg-1
7.2.3+dfsg-1
7.2.4+dfsg-1
7.2.5+dfsg-1
7.2.6-1
7.3.0~beta1+dfsg-1
7.3.0~beta2+dfsg-1
7.3.0~rc1+dfsg-1
7.3.0+dfsg-1
7.3.1+dfsg-1
7.3.2+dfsg-1
7.3.3+dfsg-1
7.3.4+dfsg-1
7.3.5-1
7.4.0~beta1-1
7.4.0~beta1-2
7.4.0~beta2+dfsg-1
7.4.0~beta2+dfsg-2
7.4.0~beta2+dfsg-3
7.4.0~rc1+dfsg-1
7.4.0~rc2+dfsg-1
7.4.0~rc3+dfsg-1
7.4.0+dfsg-1
7.4.0+dfsg-2
7.4.2+dfsg-1
7.4.2+dfsg-2
7.4.3+dfsg-1
7.4.4+dfsg-1
7.4.5+dfsg-1
7.4.6+dfsg-1
7.4.6+dfsg-2
7.4.7+dfsg-1
7.4.8+dfsg-1
7.4.9+dfsg-1
7.4.10+dfsg-1
7.4.12+dfsg-1
7.4.13+dfsg-1
7.4.13+dfsg-2
7.4.14+dfsg-1
7.4.15+dfsg-1
7.4.15+dfsg-2
7.4.16+dfsg-1
7.4.17+dfsg-1
7.4.18+dfsg-1
7.4.19+dfsg-1
7.4.20+dfsg-1
7.4.21+dfsg-1
7.4.21+dfsg-2
7.4.22+dfsg-1
7.4.23+dfsg-1
8.*
8.0.0~beta2+dfsg-1
8.0.0~beta2+dfsg-2
8.0.0~rc1+dfsg-1
8.0.0~rc2+dfsg-1
8.0.0~rc3+dfsg-1
8.0.0+dfsg-1
8.0.2+dfsg-1
8.0.3+dfsg-1
8.0.4+dfsg-1
8.0.5+dfsg-1
8.0.6+dfsg-1
8.0.7+dfsg-1
8.0.8+dfsg-1
8.0.9+dfsg-1
8.0.10-1
8.0.11+dfsg-1
8.0.12+dfsg-1
8.0.13+dfsg-1
8.1.0+dfsg-1
8.1.1+dfsg-1
8.1.3+dfsg-1
8.1.4+dfsg-1
8.1.5+dfsg-1
8.1.6+dfsg-1
8.1.7+dfsg-1
8.1.8+dfsg-1
8.1.9+dfsg-1
8.1.10+dfsg-1
8.1.11+dfsg-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123746.json"