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01 Record

CVE-2026-100264

In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host

LowPUBLISHEDCNA: JetBrains
CNA base score2.7 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

02 Description

In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 13.3% of scored records. A rank, not a probability.
NVD base score
2.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-02.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-30 15:17Z28 DAYS AGO
Last updated
2026-09-30 15:48Z28 DAYS AGO
Reserved
2026-09-25
Assigning CNA
JetBrains
Record state
PUBLISHED
Severity
Low (CVSS 2.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Weaknesses
  • CWE-522Insufficiently Protected CredentialsClass
Data version
5.2
Document digest
bc752d63a73e0a6c65f52c69921f755f54b6e1298b9ee445577675ec530571e8

05 Affected products

VendorProductVersionsPlatforms
JetBrainsYouTrack0 to < 2026.2.18991—

06 References