What is CVE-2022-27894?

CVE-2022-27894 is a medium-severity vulnerability in Palantir Foundry Blobster, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-11-04.

How severe is CVE-2022-27894?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Palantir Foundry Blobster

CVE-2022-27894

The Foundry Blobster service was found to have a cross-site scripting (XSS) vulnerability that could have allowed an attacker with access to Foundry to launch attacks against other users. This vulnerability is resolved in Blobster 3.228.0.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-11-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Palantir Foundry Blobster
Palantir Foundry Blobster Service — versions unspecified, next of 3.207.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/palantir/security-bulletins/blob/main/PLTRSEC-2022-04.md (Third Party Advisory)

Frequently asked questions

What is CVE-2022-27894?: CVE-2022-27894 is a medium-severity vulnerability in Palantir Foundry Blobster, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-11-04.
How severe is CVE-2022-27894?: Medium severity. CVSS v3 base score is 4.8 out of 10.