CVE-2026-26015

CRITICAL
Published Apr 29, 2026 Modified May 6, 2026 CWE-77

Description

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.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0027
Probability of exploitation
0.50%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-77 CWE-77

Affected Products

Vendor Product
arc53 docsgpt

References

Frequently Asked Questions

What is CVE-2026-26015? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2026-26015? +
CVE-2026-26015 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0027, placing it in the 1th percentile for exploitation probability.
What products are affected by CVE-2026-26015? +
CVE-2026-26015 affects products from arc53, specifically: docsgpt. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-26015? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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