Medium 5.4Published Jul 8, 2026

CVE-2026-55437Coder allows organizations to provision remote development environments via Terraform.

Updated under an hour ago (2026-10-19 11:23 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.17, 2.32.7, 2.33.8, and 2.34.2, the `AgentLogLine` dashboard component instantiated `ansi-to-html` without `escapeXML: true` and inserted the result via `dangerouslySetInnerHTML` so HTML embedded in workspace agent log lines was rendered as live markup. Server-side sanitization did not neutralize HTML metacharacters. Exploitation requires a victim to view attacker-controlled agent logs in the dashboard. The fix in versions 2.29.17, 2.32.7, 2.33.8, and 2.34.2 enables `escapeXML: true` so HTML metacharacters are escaped before DOM insertion. No known workarounds are available.

CVSS: 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

coder coder coder:coder	before 2.29.17; from 2.30.0 before 2.32.7; from 2.33.0 before 2.33.8; from 2.34.0 before 2.34.2	NVD

References

https://github.com/coder/coder/pull/25808issue-tracking, patch
https://github.com/coder/coder/releases/tag/v2.29.17release-notes
https://github.com/coder/coder/releases/tag/v2.32.7release-notes
https://github.com/coder/coder/releases/tag/v2.33.8release-notes
https://github.com/coder/coder/releases/tag/v2.34.2release-notes
https://github.com/coder/coder/security/advisories/GHSA-7qw2-f75v-62f7patch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.