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VulnerabilityPublished

CVE-2026-55077: Coder · User-admin role can reset owner account password

Affects github.com/coder/coder/v2Source GCVE Database

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Not known to be exploited · CVSS 7.2 High : upgrade to 2.34.2 soon.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.34.2, 2.33.8, 2.32.7 +1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Gogithub.com/coder/coder/v2Affected
  • >=2.34.0 <2.34.2
Fixed in
  • 2.34.2
Gogithub.com/coder/coder/v2Affected
  • >=2.33.0 <2.33.8
Fixed in
  • 2.33.8
Gogithub.com/coder/coder/v2Affected
  • >=2.30.0 <2.32.7
Fixed in
  • 2.32.7
Gogithub.com/coder/coder/v2Affected
  • <2.29.17
Fixed in
  • 2.29.17

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official patches available in versions 2.34.2, 2.33.8, 2.32.7, and 2.29.17 or later to prevent non-owner users from resetting owner account passwords. Until upgrading, restrict the 'user-admin' role to only trusted administrators to reduce the risk of exploitation.

Description

### Summary The `PUT /api/v2/users/{user}/password` endpoint authorized only `ActionUpdatePersonal` and did not prevent a `user-admin` from resetting an `owner` account's password. It also did not require the current password when an admin reset another user's password. > **Note:** Exploitation requires the privileged `user-admin` role so practical risk is limited to deployments that grant `user-admin` to less trusted operators. ### Impact A `user-admin` could reset any owner's password without knowing it, authenticate as that owner and gain full deployment control, including templates, workspaces, licensing, organization settings and the ability to self-assign the `owner` role. This was a privilege escalation from `user-admin` to `owner`. ### Patches The fix prevents non-owner users from resetting the password of an account that holds the `owner` role. 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 `user-admin` role to trusted administrators until upgrading. ### Resources - Fix: #25709 ### Credits Coder would like to thank Anthropic's Security Team (ANT-2026-22436) for independently disclosing this issue!

References

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