---
title: "CVE-2026-93453: SOGo - Open Redirect"
description: "SOGo < 5.12.11 contains an open redirect caused by using client-supplied Origin header in password-reset links, letting unauthenticated attackers redirect recovery tokens to attacker domains, exploit requires crafted Origin header."
url: https://panop.io/threat-heartbeat/CVE-2026-93453/
---

# CVE-2026-93453 SOGo - Open Redirect

SOGo < 5.12.11 contains an open redirect caused by using client-supplied Origin header in password-reset links, letting unauthenticated attackers redirect recovery tokens to attacker domains, exploit requires crafted Origin header.

CVSS base score 8.3 /10

High

CISA KEV

Not listed

Public exploit

Proof of concept available

Authentication

Not required

EPSS

0.49% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-93453)

## Details

Type

Open Redirect

Impact

Broken Authentication

CVSS vector

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

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-640](https://cwe.mitre.org/data/definitions/640.html)

## Vendor fix

Update to version 5.12.11 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-93453](https://nvd.nist.gov/vuln/detail/CVE-2026-93453)
- [https://www.sogo.nu/news/2026/sogo-v51211-released.html](https://www.sogo.nu/news/2026/sogo-v51211-released.html)
- [https://www.vulncheck.com/advisories/sogo-before-5.12.11-password-reset-token-interception-via-origin-header](https://www.vulncheck.com/advisories/sogo-before-5.12.11-password-reset-token-interception-via-origin-header)
- [https://github.com/Alinto/sogo](https://github.com/Alinto/sogo)
- [https://github.com/Alinto/sogo/blob/SOGo-5.12.10/UI/MainUI/SOGoRootPage.m#L1375](https://github.com/Alinto/sogo/blob/SOGo-5.12.10/UI/MainUI/SOGoRootPage.m#L1375)
- [https://github.com/Alinto/sogo/commit/04a3e9823889acaf6c247b224f5f7a0108f8f829](https://github.com/Alinto/sogo/commit/04a3e9823889acaf6c247b224f5f7a0108f8f829)
- [https://github.com/Alinto/sogo/commit/382118a93b6925de2ce7f774abc1865ebea2dbba](https://github.com/Alinto/sogo/commit/382118a93b6925de2ce7f774abc1865ebea2dbba)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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