CVE-2026-100260

MEDIUM
Published Sep 30, 2026 Modified Oct 2, 2026 CWE-1188

Description

In JetBrains YouTrack before 2026.2.18991 mailbox integration allowed authentication after a password reset

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CVSS v3.1 Score

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

EPSS — Exploit Prediction

0.0027
Probability of exploitation
0.17%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-1188 CWE-1188

Affected Products

Vendor Product
jetbrains youtrack

References

Frequently Asked Questions

What is CVE-2026-100260? +
In JetBrains YouTrack before 2026.2.18991 mailbox integration allowed authentication after a password reset It has a CVSS v3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2026-100260? +
CVE-2026-100260 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-100260? +
CVE-2026-100260 affects products from jetbrains, specifically: youtrack. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-100260? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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