CVE-2026-8634

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-14. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

Crabbox prior to v0.12.0 contains an environment variable exposure vulnerability that allows attackers with access to a malicious or compromised repository to forward local secrets such as API tokens, cloud credentials, and broker tokens into the remote command environment. Attackers can exploit overly permissive environment variable allowlisting in repo-local Crabbox configuration to serialize sensitive environment variables into remote command execution, exposing credentials to the remote environment.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
72(Attend)
EG Risk 72/100SSVC: Attend

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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
52%
KEV
Not listed

Published

May 14, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Aug 1, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_pr

[security] fix: reject empty env allow wildcards

Fix merged in openclaw/crabbox PR #78 on 2026-05-11 — awaiting tagged release

https://github.com/openclaw/crabbox/pull/78
generic

Crabbox < v0.12.0 Environment Variable Information Disclosure | Advisories | VulnCheck

https://www.vulncheck.com/advisories/crabbox-environment-variable-information-disclosure
github_release Patch Available

v0.12.0

Patch available: openclaw/crabbox v0.12.0

https://github.com/openclaw/crabbox/releases/tag/v0.12.0
github_commit

commit eaae40ae4ce0 (openclaw/crabbox)

Fix landed in openclaw/crabbox commit eaae40ae4ce0 — awaiting tagged release

https://github.com/openclaw/crabbox/commit/eaae40ae4ce009e60633f16f7f19600c74557f6f

Vendor Advisories for CVE-2026-8634(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/openclaw/crabbox—0.12.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 50× 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 128 total refreshes for this CVE.

  1. 2026-08-26 14:47 UTCEPSS rescore
  2. 2026-08-25 13:49 UTCEPSS rescore
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  4. 2026-08-23 17:34 UTCEG score recompute
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  1. 2026-08-11 13:43 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8634?
CVE-2026-8634 is a critical vulnerability published on May 14, 2026. Crabbox prior to v0.12.0 contains an environment variable exposure vulnerability that allows attackers with access to a malicious or compromised repository to forward local secrets such as API tokens, cloud credentials, and broker tokens into the remote command environment. Attackers can exploit…
When was CVE-2026-8634 disclosed?
CVE-2026-8634 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8634 actively exploited?
CVE-2026-8634 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.0% of all scored CVEs.
What is the CVSS score of CVE-2026-8634?
CVE-2026-8634 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-8634?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8634, 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.

Dependency Blast Radius

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