PT-2026-26609 · Gainsight · Gainsight Assist+1

Published 2026-03-20 · Updated 2026-04-15 · CVE-2026-31381

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions versions prior to 2026-31381

Description An attacker can extract user email addresses (PII) exposed in base64 encoding via the state parameter in the OAuth callback URL. The vulnerability involves the exposure of Personally Identifiable Information (PII). The affected component is the OAuth callback URL, specifically the state parameter.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-598

Related Identifiers

CVE-2026-31381

Affected Products

Gainsight Assist

Assista

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2026-31381 · Security Note
• https://communities.gainsight.com/community-news-2/recent-gainsight-assist-plugin-remediations-cve-2026-31381-and-cve-2026-31382-30587 · Vendor Advisory
• https://twitter.com/CVEnew/status/2035626981056782792 · Twitter Post
• https://twitter.com/cyberbivash/status/2035516195906998363 · Twitter Post
• https://twitter.com/rapid7/status/2034980208193720369 · Twitter Post
• http://rapid7.com/blog/post/ve-cve-2026-31381-cve-2026-31382-gainsight-assist-information-disclosure-xss-fixed · Note
• https://twitter.com/SecurityAr58409/status/2044241543314182569 · Twitter Post
• https://reddit.com/r/SecOpsDaily/comments/1ryx3gs/cve202631381_cve202631382_gainsight_assist · Reddit Post