CVE-2026-49373: In JetBrains TeamCity before 2026.1 remote code execution was possible via Perforce connection settings

Q: How do I fix CVE-2026-49373?

teamcity: upgrade to 2026.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-49373 being exploited?

CVE-2026-49373 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-2026-49373 affect?

CVE-2026-49373 affects teamcity. Severity is high (CVSS 7.1). In JetBrains TeamCity before 2026.1 remote code execution was possible via Perforce connection settings

Q: How urgent is CVE-2026-49373?

Priority 49/100. High severity; EPSS top 2%: very likely to be exploited

This week

HIGH 7.1UPGRADE

CVE-2026-49373 is a high-severity flaw (CVSS 7.1) affecting teamcity. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In JetBrains TeamCity before 2026.1 remote code execution was possible via Perforce connection settings

Why this priority

High severity
EPSS top 2%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	24.9% (top 2%)
CISA exploited list	No
Weakness	CWE-88
Published	2026-05-29
Last modified	2026-07-22

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

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-29 19:16 UTCPublished CVE record published
2026-07-22 06:10 UTCUpdated Record last modified

jetbrains teamcity UPGRADE

Affected: < 2026.1

Fixed in: 2026.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2026.1 (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-2026-49373?

teamcity: upgrade to 2026.1. Exact commands for each OS are on this page.

Is CVE-2026-49373 being exploited?

CVE-2026-49373 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-2026-49373 affect?

CVE-2026-49373 affects teamcity. Severity is high (CVSS 7.1). In JetBrains TeamCity before 2026.1 remote code execution was possible via Perforce connection settings

How urgent is CVE-2026-49373?

Priority 49/100. High severity; EPSS top 2%: very likely to be exploited

Software pages

JetBrains TeamCity vulnerabilities

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References

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