CVE-2026-93453
HIGHDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Exploit Intelligence
Low risk: more likely to be exploited than 38% of all known CVEs.
References
Related Vulnerabilities
Other CWE-640 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2019-18818 | Critical | 9.8 | 98% | - | - |
| CVE-2023-7028 | Critical | 10.0 | 94% | KEV | Fix |
| CVE-2017-7615 | High | 8.8 | 91% | - | - |
| CVE-2019-19844 | Critical | 9.8 | 54% | - | Fix |
| CVE-2024-2862 | Critical | 9.1 | 51% | - | - |
| CVE-2025-6216 | Critical | 9.8 | 48% | - | Fix |
Common questions
How do I fix CVE-2026-93453?
Upgrade sogo on debian 13 to 5.12.1-3+deb13u3 or later.
Is CVE-2026-93453 being actively exploited?
Not that we know of. CVE-2026-93453 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.45% is the estimated probability that it will be exploited in the next 30 days. That is higher than 38% of all scored CVEs.
How severe is CVE-2026-93453?
CVE-2026-93453 has a CVSS v3 base score of 8.3, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-93453 affect?
Published advisories record a fix for sogo (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-22.