DocsGPT is a GPT-powered chat for documentation. From version 0.15.0 to before version 0.16.0, an attacker accessing both the official DocsGPT website or any local and public deployment, can craft a malicious payload bypassing the "MCP test" behavior to achieve arbitrary remote code execution (RCE). This issue has been patched in version 0.16.0.
CVE-2026-26015
CRITICALNVD 9.89.8—Elevated
EchelonGraph scoreMEDIUM confidence
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.2%, top 35% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 75(Attend)EG Risk 75/100SSVC: 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 computedSeverity98% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 1%
- EPSS %ILE
- 66%
- KEV
- Not listed
Published
April 29, 2026
Last Modified
May 6, 2026
References (5)
- security-advisories@githubhttps://github.com/arc53/DocsGPT/releases/tag/0.16.0
- security-advisories@githubhttps://github.com/arc53/DocsGPT/security/advisories/GHSA-gcrq-f296-2j74
- af854a3a-2127-422b-91ae-364da2661108https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/
- af854a3a-2127-422b-91ae-364da2661108https://www.ox.security/blog/the-mother-of-all-ai-supply-chains-critical-systemic-vulnerability-at-the-core-of-the-mcp/
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/arc53/DocsGPT/security/advisories/GHSA-gcrq-f296-2j74
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Frequently asked(5)
What is CVE-2026-26015?
CVE-2026-26015 is a critical vulnerability published on April 29, 2026. DocsGPT is a GPT-powered chat for documentation. From version 0.15.0 to before version 0.16.0, an attacker accessing both the official DocsGPT website or any local and public deployment, can craft a malicious payload bypassing the "MCP test" behavior to achieve arbitrary remote code execution…
When was CVE-2026-26015 disclosed?
CVE-2026-26015 was first published in the National Vulnerability Database on April 29, 2026, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-26015 actively exploited?
CVE-2026-26015 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 34.0% of all scored CVEs.
What is the CVSS score of CVE-2026-26015?
CVE-2026-26015 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-26015?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-26015, 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
Explore the affected products and dependency analysis for CVE-2026-26015
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