What is CVE-2025-27155?

CVE-2025-27155 is a medium-severity vulnerability in Matrix-Org Pinecone, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-03-04.

How severe is CVE-2025-27155?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Matrix-Org Pinecone

CVE-2025-27155

Pinecone is an experimental overlay routing protocol suite which is the foundation of the current P2P Matrix demos. The Pinecone Simulator (pineconesim) included in Pinecone up to commit ea4c337 is vulnerable to stored cross-site scripting. The payload storage is not permanent and will be wiped when restarting pineconesim.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Matrix-org Pinecone — versions < 218b2801995b174085cb1c8fafe2d3aa661f85bd

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-27155?: CVE-2025-27155 is a medium-severity vulnerability in Matrix-Org Pinecone, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-03-04.
How severe is CVE-2025-27155?: Medium severity. CVSS v3 base score is 6.1 out of 10.