CVE-2026-124503: Path Traversal (CVSS 4.3)

Description

A vulnerability was identified in sooperset mcp-atlassian up to 0.24.0. This issue affects the function validate_safe_path of the file src/mcp_atlassian/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.

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CVSS v3.1 Score

4.3

MEDIUM

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

EPSS — Exploit Prediction

0.0054

Probability of exploitation

0.46%

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-22 Path Traversal

References

Other References

https://github.com/sooperset/mcp-atlassian/ https://github.com/sooperset/mcp-atlassian/pull/1448 https://github.com/sooperset/mcp-atlassian/releases/tag/v0.24.1 https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-qh7q-jmc7-rc7j https://vuldb.com/cve/CVE-2026-124503 https://vuldb.com/submit/1052035 https://vuldb.com/vuln/433614 https://vuldb.com/vuln/433614/cti

Frequently Asked Questions

What is CVE-2026-124503? +

A vulnerability was identified in sooperset mcp-atlassian up to 0.24.0. This issue affects the function validate_safe_path of the file src/mcp_atlassian/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. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-124503? +

CVE-2026-124503 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0054, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-124503? +

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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