Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Coder (github.com/coder/coder/v2) versions 2.27.0 up to but not including 2.29.19, 2.30.0 up to 2.32.9, 2.33.0 up to 2.33.10, and 2.34.0 up to 2.34.4 are affected. An authenticated user with a running workspace and a modified workspace agent can redirect agent API requests to another agent's file API, reading or writing that victim's files, and in some versions run commands as the victim workspace user. Upgrade to 2.29.19, 2.32.9, 2.33.10, 2.34.4 or later. No workaround is listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.3 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0076, the 55th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:13 UTC First seen by agentprime
- 31 Oct 2026, 14:13 UTC Confirmed by OSV