CVE-2026-34476 json
Apache SkyWalking MCP: Server-Side Request Forgery via SW-URL Header in MCP Server
published 2026-04-13 6 mo ago modified 2026-10-26 13 d ago also GHSA-c4hg-6933-x62x , GO-2026-5310 , EUVD-2026-21918
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP.
This issue affects Apache SkyWalking MCP: 0.1.0.
Users are recommended to upgrade to version 0.2.0, which fixes this issue.
Patch / fix
- go github.com/apache/skywalking-mcp 0.2.0
- apache skywalking_mcp 0.2.0
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| GitHub | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/apache/skywalking-mcp | <0.2.0 |
0.2.0 |
Affected products
- Apache Software Foundation Apache SkyWalking MCP
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
lists.apache.org
/thread/v0k1xyzzbtnpyrwxwyn36pbspr8rhjnr
vendor-advisory, web
-
openwall.com
/lists/oss-security/2026/04/13/4
web, mailing-list
-
nvd.nist.gov
/vuln/detail/CVE-2026-34476
advisory
-
github.com
/advisories/GHSA-c4hg-6933-x62x
advisory
-
github.com
/apache/skywalking-mcp
package
Sources
- CVE List CVE-2026-34476
- GitHub Advisory GHSA-c4hg-6933-x62x
- NVD CVE-2026-34476
- OSV GO-2026-5310
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.