Stored HTML injection in Coder appearance settings
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
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 is affected. The ApplicationName and LogoURL appearance settings are rendered into HTML without sufficient escaping (CWE-79). An attacker with the Owner role can store HTML that renders in the Coder dashboard and in SMTP notification emails sent to other users.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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 to other deployment users.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| coder | coder | 2.34.0 to before 2.34.2 | 2.34.2 | Patch available | CNA |
| coder | coder | 2.33.0 to before 2.33.8 | 2.33.8 | Patch available | CNA |
| coder | coder | 2.30.0 to before 2.32.7 | 2.32.7 | Patch available | CNA |
| coder | coder | before 2.29.17 | 2.29.17 | Patch available | CNA |
- coder Vendorcoder Affected 2.34.0 to before 2.34.2 Fixed in 2.34.2 Patch available CNA
- coder Vendorcoder Affected 2.33.0 to before 2.33.8 Fixed in 2.33.8 Patch available CNA
- coder Vendorcoder Affected 2.30.0 to before 2.32.7 Fixed in 2.32.7 Patch available CNA
- coder Vendorcoder Affected before 2.29.17 Fixed in 2.29.17 Patch available CNA
Remediation
Fixed versions for coder are 2.29.17, 2.32.7, 2.33.8 and 2.34.2. Upgrade to the fixed version of the release line in use.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA coder (coder) Fixed in 2.34.2
- Fix · CNA coder (coder) Fixed in 2.33.8
- Fix · CNA coder (coder) Fixed in 2.32.7
- Fix · CNA coder (coder) Fixed in 2.29.17
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
coder 2.29.17, 2.32.7 and 2 more versions
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-76138 User enumeration via login placeholder hash in CoderPriority LOW 27
Timeline
- 2026-10-18 Threatist record created from CVE-2026-111932
- 2026-10-18 Alias added: GHSA-7cmx-x3cj-5mp3
- 2026-10-22 CISA SSVC decision points changed
References
More coder vulnerabilities
- TI-2025-29799 code-server session cookie can be extracted by having user visit specially crafted proxy URL CVSS 3.1HIGH 8.3
- TI-2025-37344 AgentAPI exposed user chat history via a DNS rebinding attack CVSS 3.1MEDIUM 6.5
- TI-2026-34071 Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft CVSS 3.1CRITICAL 9.1
- TI-2026-32394 Coder vulnerable to workspace auto-creation via crafted URL parameters without user consent CVSS 3.1HIGH 8.8
- TI-2026-27585 Code Extension Marketplace has a Zip Slip Path Traversal CVSS 4.0HIGH 8.7
- TI-2024-18523 Coder's OIDC authentication allows email with partially matching domain to register CVSS 3.1HIGH 8.2
Sources
- CVE-2026-111932 · CVE Program
- CVE-2026-111932 · NVD
- FIRST EPSS
- GHSA-7cmx-x3cj-5mp3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences