CVE-2026-93453
SOGo before 5.12.11 Password Reset Token Interception via Origin Header
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
8.7
SOGo before 5.12.11 Password Reset Token Interception via Origin Header
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.
- Record
CVE-2026-93453- CVSS 4.0
- 8.7 High
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 - CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-640
- Updated
- 2026-11-02
EUVDEUVD-2026-82605
8.7
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.
- Record
EUVD-2026-82605- CVSS 4.0
- 8.7 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gqgv-6fx9-g8mx
8.7
SOGo before 5.12.11 constructs password-reset links using the client-supplied Origin header as...
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.
- Record
GHSA-gqgv-6fx9-g8mx- CVSS 4.0
- 8.7 High
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/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 - CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-640
- Updated
- 2026-11-02
NVD
8.7
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.
- Record
CVE-2026-93453- CVSS 4.0
- 8.7 High
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/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 - CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Weakness
- CWE-640
- Updated
- 2026-11-02
OSV
8.7
SOGo before 5.12.11 Password Reset Token Interception via Origin Header
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.
- Record
CVE-2026-93453- CVSS 4.0
- 8.7 High
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 - Weakness
- CWE-640
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-93453
8.7
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.
- Record
DEBIAN-CVE-2026-93453- CVSS 4.0
- 8.7 High
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/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 - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-93453
8.7
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.
- Record
UBUNTU-CVE-2026-93453- CVSS 4.0
- 8.7 High
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 - CVSS 3.1
- 8.3 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L - Updated
- 2026-11-04
OSVMGASA-2026-0557 No score
Updated sogo package fixes a security vulnerability
SOGo before 5.12.11 Password Reset Token Interception via Origin Header. (CVE-2026-93453)
- Record
MGASA-2026-0557- Updated
- 2026-11-02
OSVUSN-8993-1 No score
sogo vulnerability
It was discovered that SOGo used the client-supplied Origin header when constructing password reset links. A remote attacker could possibly use this issue to obtain password reset tokens and take over user accounts.
- Record
USN-8993-1- Updated
- 2026-11-04
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
sogoDebian:12 |
All versions, plus listed versions 5.10.0-15.10.0-25.10.0-35.11.0-15.11.0-2 Show 30 moreShow less5.11.1-15.11.2-15.11.2-25.11.2-35.11.2-45.12.0-15.12.1-15.12.1-25.12.1-35.12.10-15.12.11-15.12.3-15.12.3-25.12.4-15.12.4-1.15.12.4-1.25.12.6-15.12.7-15.12.8-15.12.8-25.12.9-15.8.0-15.8.0-2+deb12u15.8.0-2+deb12u25.8.0-2+deb12u35.8.2-15.8.3-15.8.4-15.9.0-15.9.1-1 |
None known |
sogoDebian:13 |
before 5.12.1-3+deb13u3, plus listed versions 5.12.1-35.12.1-3+deb13u15.12.1-3+deb13u2 |
5.12.1-3+deb13u3 |
sogoMageia:10 |
before 5.12.12-1.mga10 | 5.12.12-1.mga10 |
sogoUbuntu:26.10 |
All versions, plus listed versions 5.12.4-1.25.12.8-25.12.9-15.12.10-1ubuntu1 |
None known |
sogoUbuntu:Pro:26.04:LTS |
before 5.12.4-1.2ubuntu0.1~esm2, plus listed versions 5.12.1-35.12.4-15.12.4-1.15.12.4-1.25.12.4-1.2ubuntu0.1~esm1 |
5.12.4-1.2ubuntu0.1~esm2 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | Faceless0x7/CVE-2026-93453 | 2026-09-18 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| affected, facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-93453 is a high vulnerability (CVSS 8.7) in Alinto Sogo, published September 17, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in sogo 5.12.1-3+deb13u3.
References
sogo.nu/news/2026/sogo-v51211-released.html
github.com/Alinto/sogo/commit/382118a93b6925de2ce7f774abc1865ebea2dbba
github.com/Alinto/sogo/commit/04a3e9823889acaf6c247b224f5f7a0108f8f829
github.com/Alinto/sogo/blob/SOGo-5.12.10/UI/MainUI/SOGoRootPage.m
github.com/Alinto/sogo
vulncheck.com/advisories/sogo-before-5.12.11-password-reset-token-interception-via-origin-header
Show 11 moreShow less
nvd.nist.gov/vuln/detail/CVE-2026-93453
github.com/advisories/GHSA-gqgv-6fx9-g8mx
github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93453.json
security-tracker.debian.org/tracker/CVE-2026-93453
advisories.mageia.org/MGASA-2026-0557.html
bugs.mageia.org/show_bug.cgi?id=36521
lists.debian.org/debian-security-announce/2026/msg00474.html
sogo.nu/news/2026/sogo-v51212-released.html
ubuntu.com/security/CVE-2026-93453
cve.org/CVERecord?id=CVE-2026-93453
ubuntu.com/security/notices/USN-8993-1