CVE-2021-25761

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

In JetBrains Ktor before 1.5.0, a birthday attack on SessionStorage key was possible.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-326

Affected software

No affected versions have been published.

Timeline

Published
Feb 3, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-257625.3In JetBrains Ktor before 1.4.3, HTTP Request Smuggling was possible.CVE-2021-257635.3In JetBrains Ktor before 1.4.2, weak cipher suites were enabled by default.CVE-2021-257645.3In JetBrains PhpStorm before 2020.3, source code could be added to debug logs.CVE-2021-257658.8In JetBrains YouTrack before 2020.4.4701, CSRF via attachment upload was possible.CVE-2021-257665.3In JetBrains YouTrack before 2020.4.4701, improper resource access checks were made.CVE-2021-257675.3In JetBrains YouTrack before 2020.6.1767, an issue's existence could be disclosed via YouTrack command execution.CVE-2021-257685.3In JetBrains YouTrack before 2020.4.4701, permissions for attachments actions were checked improperly.CVE-2021-257697.5In JetBrains YouTrack before 2020.4.6808, the YouTrack administrator wasn't able to access attachments.CVE-2021-257709.8In JetBrains YouTrack before 2020.5.3123, server-side template injection (SSTI) was possible, which could lead to code execution.CVE-2021-257714.3In JetBrains YouTrack before 2020.6.1099, project information could be potentially disclosed.CVE-2021-257725.3In JetBrains TeamCity before 2020.2.2, TeamCity server DoS was possible via server integration.CVE-2021-257736.1JetBrains TeamCity before 2020.2 was vulnerable to reflected XSS on several pages.
CVE-2021-25761: Medium severity, CVSS 5.3 | Vulnix