CVE-2026-106219: In JetBrains TeamCity before 2026.2.1 missing validation of Git submodule URLs allowed reading local repositor

Q: How do I fix CVE-2026-106219?

teamcity: upgrade to 2026.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-106219 being exploited?

CVE-2026-106219 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-106219 affect?

CVE-2026-106219 affects teamcity. Severity is medium (CVSS 6.5). In JetBrains TeamCity before 2026.2.1 missing validation of Git submodule URLs allowed reading local repositories on the server

Q: How urgent is CVE-2026-106219?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-106219 is a medium-severity flaw (CVSS 6.5) affecting teamcity. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In JetBrains TeamCity before 2026.2.1 missing validation of Git submodule URLs allowed reading local repositories on the server

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-73
Published	2026-10-06
Last modified	2026-10-08

Publisher (CNA): JetBrains s.r.o. · Vendor: jetbrains

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-06 17:17 UTCPublished CVE record published
2026-10-08 14:52 UTCUpdated Record last modified

jetbrains teamcity UPGRADE

Affected: < 2026.2.1

Fixed in: 2026.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy teamcity || rpm -q teamcity || teamcity --version

2. UPGRADE to 2026.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade teamcity

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade teamcity

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-106219?

teamcity: upgrade to 2026.2.1. Exact commands for each OS are on this page.

Is CVE-2026-106219 being exploited?

CVE-2026-106219 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-106219 affect?

CVE-2026-106219 affects teamcity. Severity is medium (CVSS 6.5). In JetBrains TeamCity before 2026.2.1 missing validation of Git submodule URLs allowed reading local repositories on the server

How urgent is CVE-2026-106219?

Priority 36/100. No elevated risk signals yet.

Software pages

Git vulnerabilities · JetBrains TeamCity vulnerabilities

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References

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