CVE-2026-111933 json
Coder before 2.34.2 User Enumeration via Login Placeholder Hash
published 2mo ago modified 16d ago also EUVD-2026-103300 , GHSA-8fxq-53rx-ph5f , GO-2026-6265
- cvss
- 3.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
Coder before 2.29.17, 2.30.0 before 2.32.7, 2.33.0 before 2.33.8, and 2.34.0 before 2.34.2 contains a user enumeration vulnerability because userpassword.Compare() substitutes a placeholder hash derived from the string "hunter2" when a stored password hash is empty. Unauthenticated attackers can submit logins with the password "hunter2" and distinguish HTTP 403 from 401 responses to enumerate valid accounts and reveal the authentication provider of SSO-only users.
Patch / fix
- go github.com/coder/coder/v2 2.29.17, 2.32.7, 2.33.8, 2.34.2
- coder coder 2.29.17, 2.32.7, 2.33.8, 2.34.2
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21d ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.3 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| CNA | 4.0 | 6.3 | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/coder/coder/v2 | >=2.34.0, <2.34.2 >=2.33.0, <2.33.8 >=2.30.0, <2.32.7 <2.29.17 |
2.34.2 2.33.8 2.32.7 2.29.17 |
| go | github.com/coder/coder | all versions |
no fix listed |
Affected products
- coder coder
Classification
References
-
github.com
/coder/coder/pull/26205
web, patch
-
github.com
/coder/coder/commit/35a7dc8ab9c7f15ce05d963947823ee31224512f
web, patch
-
github.com
/coder/coder/security/advisories/GHSA-8fxq-53rx-ph5f
vendor-advisory, web, advisory
-
vulncheck.com
/advisories/coder-before-2.34.2-user-enumeration-via-login-placeholder-hash
third-party-advisory
-
github.com
/coder/coder
package
-
github.com
/coder/coder/releases/tag/v2.29.17
web
-
github.com
/coder/coder/releases/tag/v2.32.7
web
-
github.com
/coder/coder/releases/tag/v2.33.8
web
-
github.com
/coder/coder/releases/tag/v2.34.2
web
Sources
- CVE List CVE-2026-111933
- GitHub Advisory GHSA-8fxq-53rx-ph5f
- NVD CVE-2026-111933
- OSV GO-2026-6265
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.