CVE-2026-77266
MediumAdvisory
Published 22 Sept 2026In the index since 23 Sept 2026
- Severity
- Medium
- worst across findings
- CVSS
- 6.5
- base score, highest
- EPSS
- 0.004
- 37th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 1
- of 18,143 indexed, latest versions
- Container images
- 1
- deployed by those charts
- Fix available
- 1 of 1
- affected package
MCP Atlassian: Path traversal in upload_attachment allows arbitrary file read and exfiltration via MCP tool call
Carried by container images the latest versions of 1 of 18,143 indexed charts deploy, on 1 image.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| mcp-atlassianpypi | 0.0.0 | 0.22.0 | 1 |
- OSV records
- GHSA-mfv2-4wvm-9pgp
- Also known as
- PYSEC-2026-4097
Charts affected
1 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| mcp-atlassianmcp-helmVerified publisher | 0.2.28 | 1 of 1See more | 2,111 |
Container images carrying it
1 by charts deploying them
A fixed version is listed for 1 of the 1 affected package.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| ghcr.io/ | 27c8e5b890e1 | mcp-atlassian | 0.22.0 | 1 |