CVE-2025-58437

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 73% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Coder allows organizations to provision remote development environments via Terraform. In versions 2.22.0 through 2.24.3, 2.25.0 and 2.25.1, Coder can be compromised through insecure session handling in prebuilt workspaces. Coder automatically generates a session token for a user when a workspace is started. It is automatically exposed via coder_workspace_owner.session_token. Prebuilt workspaces are initially owned by a built-in prebuilds system user. When a prebuilt workspace is claimed, a new session token is generated for the user that claimed the workspace, but the previous session token for the prebuilds user was not expired. Any Coder workspace templates that persist this automatically generated session token are potentially impacted. This is fixed in versions 2.24.4 and 2.25.2.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

September 6, 2025

Last Modified

October 17, 2025

Advisory Details (7)

Auto-updated Sep 16, 2026
Patch available. Sources: github_commit, github_pr, github.
github Patch Available

Privilege escalation abusing a shared system identity could lead to a cross workspace compromise · Advisory · coder/coder · GitHub

https://github.com/coder/coder/security/advisories/GHSA-j6xf-jwrj-v5qp
github_pr

[2.24 backport] fix: expire token for prebuilds user when regenerating session token (#19667)

Fix merged in coder/coder PR #19669 on 2025-09-03 — awaiting tagged release

https://github.com/coder/coder/pull/19669
github_pr

[2.25 backport] fix: expire token for prebuilds user when regenerating session token (#19667)

Fix merged in coder/coder PR #19668 on 2025-09-03 — awaiting tagged release

https://github.com/coder/coder/pull/19668
github_pr

fix: expire token for prebuilds user when regenerating session token

Fix merged in coder/coder PR #19667 on 2025-09-02 — awaiting tagged release

https://github.com/coder/coder/pull/19667
github_commit

commit ec660907faa0 (coder/coder)

Fix landed in coder/coder commit ec660907faa0 — awaiting tagged release

https://github.com/coder/coder/commit/ec660907faa0b0eae20fa2ba58ce1733f5f4b35a
github_commit

commit 20d67d7d7191 (coder/coder)

Fix landed in coder/coder commit 20d67d7d7191 — awaiting tagged release

https://github.com/coder/coder/commit/20d67d7d7191a4fd5d36a61c6fc1e23ab59befc0
github_commit

commit 06cbb2890f45 (coder/coder)

Fix landed in coder/coder commit 06cbb2890f45 — awaiting tagged release

https://github.com/coder/coder/commit/06cbb2890f453cd522bb2158a6549afa3419c276

Affected Packages

(2 across 1 ecosystem)
Go(2)
PackageVulnerable rangeFixed inDependents
github.com/coder/coder———
github.com/coder/coder/v2—2.25.2—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 151 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
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  1. 2026-08-25 04:26 UTCOSV refresh
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Frequently asked(5)

What is CVE-2025-58437?
CVE-2025-58437 is a high vulnerability published on September 6, 2025. Coder allows organizations to provision remote development environments via Terraform. In versions 2.22.0 through 2.24.3, 2.25.0 and 2.25.1, Coder can be compromised through insecure session handling in prebuilt workspaces. Coder automatically generates a session token for a user when a workspace…
When was CVE-2025-58437 disclosed?
CVE-2025-58437 was first published in the National Vulnerability Database on September 6, 2025, with the most recent update on October 17, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-58437 actively exploited?
CVE-2025-58437 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 68.8% of all scored CVEs.
What is the CVSS score of CVE-2025-58437?
CVE-2025-58437 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2025-58437?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-58437, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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