In-memory stored Cross-site scripting (XSS) vulnerability in pineconesim

Description

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.

Scores

EPSS (exploitation in 30 days)

0.24% · top 85% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs
• CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) (opens in a new tab)All about CWE-80 and its CVEs

Affected products

• matrix-org · pinecone

  • affected < 218b2801995b174085cb1c8fafe2d3aa661f85bd

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Gogithub.com/matrix-org/pineconeGHSA-fr62-mg2q-7wqv (opens in a new tab)

References (2)

• https://github.com/matrix-org/pinecone/security/advisories/GHSA-fr62-mg2q-7wqv (opens in a new tab)x_refsource_CONFIRM
• https://github.com/matrix-org/pinecone/commit/218b2801995b174085cb1c8fafe2d3aa661f85bd (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-fr62-mg2q-7wqv (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-27155](https://trackcve.app/badge/CVE-2025-27155.svg)](https://trackcve.app/cve/CVE-2025-27155)

Record last updated 4 Mar 2025, 16:57 UTC.