# CVE-2026-124503: sooperset mcp-atlassian io.py validate_safe_path path traversal

Status: published. Published: 2026-11-10. Updated: 2026-11-10.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulDB) — https://github.com/sooperset/mcp-atlassian/pull/1448
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulDB) — https://github.com/sooperset/mcp-atlassian/releases/tag/v0.24.1

## Affected products and versions

- sooperset / mcp-atlassian: 0.1 (affected); 0.2 (affected); 0.3 (affected); 0.4 (affected); 0.5 (affected); 0.6 (affected); 0.7 (affected); 0.8 (affected); 0.9 (affected); 0.10 (affected); 0.11 (affected); 0.12 (affected); 0.13 (affected); 0.14 (affected); 0.15 (affected); 0.16 (affected); 0.17 (affected); 0.18 (affected); 0.19 (affected); 0.20 (affected); 0.21 (affected); 0.22 (affected); 0.23 (affected); 0.24.0 (affected); 0.24.1 (unaffected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS: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; source: CNA: VulDB

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C; source: CNA: VulDB

- CVSS 3.0: 4.3 (medium); CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C; source: CNA: VulDB

- CVSS 2.0: 4 (medium); AV:N/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:OF/RC:C; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-22

## Exploit evidence

- exploit: https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-qh7q-jmc7-rc7j (CNA: VulDB)

## References

- https://vuldb.com/vuln/433614 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/433614/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-124503 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1052035 (CNA: VulDB; third-party-advisory)

- https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-qh7q-jmc7-rc7j (CNA: VulDB; exploit)

- https://github.com/sooperset/mcp-atlassian/pull/1448 (CNA: VulDB; issue-tracking, patch)

- https://github.com/sooperset/mcp-atlassian/releases/tag/v0.24.1 (CNA: VulDB; patch)

- https://github.com/sooperset/mcp-atlassian/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-124503; retrieved 2026-11-10; source updated 2026-11-10

Revision: 5882d6bb67756c97e81acbc4d0f53d9843fe79b26dae43999115e8c9df5286f5

Canonical: https://y2.dev/cve/CVE-2026-124503

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