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CVE-2026-126775

MEDIUMCVSS 4.2/10EPSS 0.14%

Last modified

CVE-2026-126775 is a medium-severity vulnerability rated 4.2/10 on the CVSS scale. Social-auth-core 4.7.0 before 7.0.0 contains a login cross-site request forgery vulnerability in the SAML backend that restores sessions named in the unsigned RelayState parameter. Attackers can deliver their own valid IdP response and RelayState to a victim's browser via an auto-submitting form, signing the victim into the attacker's account to capture entered data.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

Social-auth-core 4.7.0 before 7.0.0 contains a login cross-site request forgery vulnerability in the SAML backend that restores sessions named in the unsigned RelayState parameter. Attackers can deliver their own valid IdP response and RelayState to a victim's browser via an auto-submitting form, signing the victim into the attacker's account to capture entered data.

Metrics

CVSS 3.1
4.2/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS 4.0
2.3/10

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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

EPSS Probability
0.14%

3.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
python-social-authsocial-auth-core>= 4.7.0, < 7.0.0

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-126775?
Social-auth-core 4.7.0 before 7.0.0 contains a login cross-site request forgery vulnerability in the SAML backend that restores sessions named in the unsigned RelayState parameter. Attackers can deliver their own valid IdP response and RelayState to a victim's browser via an auto-submitting form, signing the victim into the attacker's account to capture entered data.
How severe is CVE-2026-126775?
CVE-2026-126775 has a CVSS score of 4.2/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.
How do I fix CVE-2026-126775?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST