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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-352"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126775.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "4.7.0"
},
{
"fixed": "7.0.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
},
{
"extracted_events": [
{
"range": [
{
"introduced": "4.7.0"
},
{
"fixed": "7.0.0"
}
],
"source": "DESCRIPTION"
}
]
}
]
}{
"extracted_events": [
{
"range": [
{
"fixed": "7d9da571fc9ce8bd0003ccfcbfa8ed98c18bb640"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "7.0.0",
"range": [
{
"fixed": "272e67201a6b6d623a7c9a24887d7041fbd21582"
}
],
"source": "REFERENCES_TAG"
}
]
}