Is there a public exploit for CVE-2026-124503?

No public exploit for CVE-2026-124503 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-124503?

CVE-2026-124503 scores CVSS 5.3 (v4.0), rated medium.

What does CVE-2026-124503 affect?

CVE-2026-124503 affects sooperset mcp-atlassian. It is part of the AI and agent stack (Model Context Protocol).

5.3 Medium

A vulnerability was identified in sooperset mcp-atlassian up to 0.24.0.

CVE-2026-124503

A vulnerability was identified in sooperset mcp-atlassian up to 0.24.0. This issue affects the function validatesafepath of the file src/mcpatlassian/utils/io.py. The manipulation of the argument path leads to path traversal. The attack may be initiated remotely. The exploit is publicly available and might be used. Upgrading to version 0.24.1 is capable of addressing this issue. Upgrading the affected component is recommended. This CVE was requested by the vendor.

Part of the AI stack

This affects Model Context Protocol, in MCP & tool servers.

Assessment

CVSS: 5.3 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 10 November 2026
Last updated: 10 November 2026
Affected: sooperset · mcp-atlassian
Assigner: VulDB

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

At the source

EUVD (ENISA)

References

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