9.1

CVE-2026-46354: coder

CVSS: 9.1v3.1CriticalAnalyzed
AliasesGHSA-6x44-w3xg-hqqfGO-2026-5196
Published 07-07-2026Last modified 08-07-2026
Open JSON

Vulnerability summary

CVE-2026-46354 is a critical (CVSS 9.1) vulnerability in coder. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:21483-1

Timeline

  1. 07-07-2026
    PublishedVulnerability first disclosed.
  2. 08-07-2026
    Last modifiedVulnerability information updated.

Description

Coder allows organizations to provision remote development environments via Terraform. In versions prior tp 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3, `azureidentity.Validate()` verifies that the PKCS#7 signer certificate chains to a trusted Azure CA but never verifies the PKCS#7 signature itself. An attacker can embed a legitimate Azure certificate alongside arbitrary content e.g. `{"vmId":"<target>"}` and the forged `vmId` will be accepted returning the victim workspace agent's session token. No authentication is required. The attacker only needs to know a target VM's `vmId` which is a `UUIDv4`. That's a practical limitation which would typically require prior access to be exploited. Versions 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 patch the issue. As a workaround, reconfigure any Azure templates to use token authentication rather than `azure-instance-identity`.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.32% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Coder1 product
  • coder≥ 2.33.0-rc.0, < 2.33.3 | ≥ 2.32.0-rc.0, < 2.32.2 | < 2.24.5 | ≥ 2.29.0, < 2.29.13 | ≥ 2.30.0, < 2.30.8 | ≥ 2.31.0, < 2.31.12 | ≥ 2.32.0, < 2.32.2 | ≥ 2.33.0, < 2.33.3
Github.com/coder1 product
  • coder≤ 0.27.3 | All versions (No fix recorded)
Github.com/coder/coder1 product
  • v2≥ 2.32.0-rc.0, < 2.32.2 | ≥ 2.31.0, < 2.31.12 | ≥ 2.30.0, < 2.30.8 | ≥ 2.29.0, < 2.29.13 | < 2.24.5 | ≥ 2.33.0-rc.0, < 2.33.3

3 vendors · 3 products

References

9 links