🛡️ CVE-2026-49376 — teamcity

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: None.

Weakness class

CVE-2026-49376 is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

CVE-2026-49376 is recorded against 1 package.

• teamcity (fixed in 2026.1)

Timeline and source

Published on 29 May 2026 and last revised on 22 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.jetbrains.com

Other advisories for this package

teamcity has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-63077 (9.8 Critical, published 27 Jul 2026)
• CVE-2026-65906 (8.8 High, published 23 Jul 2026)
• CVE-2026-59796 (8.1 High, published 10 Jul 2026)
• CVE-2026-59795 (8.1 High, published 10 Jul 2026)
• CVE-2026-59794 (7.3 High, published 10 Jul 2026)
• CVE-2026-59793 (8.8 High, published 10 Jul 2026)
• CVE-2026-49374 (7.6 High, published 29 May 2026)
• CVE-2026-49381 (3.4 Low, published 29 May 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-863: Incorrect Authorization) in other software:

• CVE-2025-14562 (2.0 Low, published 17 Aug 2026)
• CVE-2025-30238 (published 10 Aug 2026)
• CVE-2025-15674 (2.7 Low, published 6 Aug 2026)
• CVE-2025-10656 (9.8 Critical, published 29 Jul 2026)
• CVE-2024-9902 (6.3 Medium, published 7 Jul 2026)
• CVE-2023-49734 (8.0 High, published 7 Jul 2026)
• CVE-2024-37300 (8.1 High, published 7 Jul 2026)
• CVE-2024-39905 (5.3 Medium, published 7 Jul 2026)

Details

Affected Packages

References