Vulnerability · CVE-2026-111932
Coder before 2.34.2 Stored HTML Injection via Appearance Settings
Published Aug 20, 2026 · catalog updated Oct 18, 2026 · Coder before 2.34.2 Stored
Open the advisory
Exploitation likelihood is not on this record for CVE-2026-111932. A missing EPSS score is not a low risk. Compare Coder before 2.34.2 Stored with the linked advisory before you change production.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Coder before 2.34.2 Stored).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- EPSS is missing. A missing score is not a low risk.
- Severity
- Medium4.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- Not in the current FIRST EPSS dataset
- Remediation
- Advisory link
- Affected products
- Go github.com/coder/coder · Go github.com/coder/coder/v2 · vendor coder coder
### Summary The and appearance settings were rendered into HTML output without sufficient escaping which let a highly privileged Owner-role user inject HTML into the Coder dashboard and SMTP notification emails. > **Note:** Exploitation requires the role which already holds full administrative control of the deployment so practical impact is limited. ### Impact An Owner-role user could store HTML markup in the or appearance settings that later rendered in the dashboard and in SMTP notification emails which results in stored HTML injection against other users of the deployment. Exploitation requires the highly privileged role. ### Patches The fix escapes the and appearance values in HTML output before rendering. The fix was backported to all supported release lines: | Release line | Patched version | |---|---| | 2.34 | [v2.34.2](https://github.com/coder/coder/releases/tag/v2.34.2) | | 2.33 | [v2.33.8](https://github.com/coder/coder/releases/tag/v2.33.8) | | 2.32 | [v2.32.7](https://github.com/coder/coder/releases/tag/v2.32.7) | | 2.29 (ESR) | [v2.29.17](https://github.com/coder/coder/releases/tag/v2.29.17) | ### Workarounds Restrict the role to trusted administrators. ### References - Fix: #25804 ### Credits We'd like to thank Anthropic's Security Team (ANT-2026-22453) for independently disclosing this issue!
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- Go github.com/coder/coderversion unspecified
- Go github.com/coder/coder/v20 → 2.29.17
- Go github.com/coder/coder/v22.30.0 → 2.32.7
- Go github.com/coder/coder/v22.33.0 → 2.33.8
- Go github.com/coder/coder/v22.34.0 → 2.34.2
- vendor coder coderversion unspecified
How to fix CVE-2026-111932
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
Exploitation likelihood is not on this record for CVE-2026-111932. A missing EPSS score is not a low risk. Compare Coder before 2.34.2 Stored with the linked advisory before you change production.
Which versions are affected?
Compare what you have installed with 0 → 2.29.17, 2.30.0 → 2.32.7, 2.33.0 → 2.33.8, 2.34.0 → 2.34.2. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-74: Injection; CWE-79: Cross-site Scripting (XSS). EPSS is absent from the current FIRST dataset. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 17, 2026 · NIST NVD
Detected
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 stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owner role can store HTML markup in these settings that renders in the Coder dashboard and in SMTP notification emails sent
Oct 18, 2026 · GitHub Advisory Database
Fix available
github.com/coder/coder/v2 fixed in 2.34.2; github.com/coder/coder/v2 fixed in 2.33.8; github.com/coder/coder/v2 fixed in 2.32.7; github.com/coder/coder/v2 fixed in 2.29.17
Oct 18, 2026 · GitHub Advisory Database
Fix available
github.com/coder/coder/v2 fixed in 2.34.2
Oct 18, 2026 · GitHub Advisory Database
Fix available
github.com/coder/coder/v2 fixed in 2.33.8
Oct 18, 2026 · GitHub Advisory Database
Fix available
github.com/coder/coder/v2 fixed in 2.32.7
Oct 18, 2026 · GitHub Advisory Database
Fix available
github.com/coder/coder/v2 fixed in 2.29.17
Oct 18, 2026 · GitHub Advisory Database
Fix available
github.com/coder/coder/v2 fixed in 2.29.17
Oct 18, 2026 · GitHub Advisory Database
Updated
### Summary The and appearance settings were rendered into HTML output without sufficient escaping which let a highly privileged Owner-role user inject HTML into the Coder dashboard and SMTP notification emails. > **Note:** Exploitation requires the role which already holds full administrative control of the deployment so practical impact is limited. ### Impact An Owner-role user could store HTML
Sources
- CVE.orgVulnerability recordCVE-2026-111932
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 stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owne
cve.org - GitHub Advisory DatabasePackage advisoryGHSA-h58c-xccx-75m3
GitHub Advisory Database record mirrored by OSV.
github.com - Go Vulnerability DatabasePackage advisoryGHSA-h58c-xccx-75m3
Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings
osv.dev - Go Vulnerability DatabasePackage advisoryGO-2026-6267
Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings in github.com/coder/coder
osv.dev - NIST NVDVulnerability recordCVE-2026-111932
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 stored HTML injection vulnerability because the ApplicationName and LogoURL appearance settings are rendered into HTML output without sufficient escaping. Attackers with the Owne
nvd.nist.gov - OpenSSF OSV / OSV ScannerPackage advisoryGHSA-h58c-xccx-75m3
Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings
osv.dev - OpenSSF OSV / OSV ScannerPackage advisoryGO-2026-6267
Coder: Stored HTML injection via unescaped ApplicationName and LogoURL appearance settings in github.com/coder/coder
osv.dev
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.