🛡️ CVE-2026-13189 — telerik-ui-for-asp.net-ajax

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 high, integrity none, 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:H/I:N/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: High — total loss, or loss the attacker controls.
• Integrity impact: None.
• Availability impact: None.

Weakness class

CVE-2026-13189 is classified as CWE-36: Absolute Path Traversal. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as "/abs/path" that can resolve to a location that is outside of that directory.

Affected software

CVE-2026-13189 is recorded against 1 package.

• telerik-ui-for-asp.net-ajax (from 2011.2712 up to 2026.2.708)

Timeline and source

Published on 22 July 2026 and last revised on 6 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.telerik.com

Other advisories for this package

telerik-ui-for-asp.net-ajax has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-13192 (6.5 Medium, published 22 Jul 2026)
• CVE-2026-13183 (7.5 High, published 22 Jul 2026)
• CVE-2026-13190 (8.1 High, published 22 Jul 2026)
• CVE-2026-13182 (7.5 High, published 22 Jul 2026)
• CVE-2026-13188 (5.9 Medium, published 22 Jul 2026)
• CVE-2026-13181 (8.1 High, published 22 Jul 2026)
• CVE-2026-13187 (8.1 High, published 22 Jul 2026)
• CVE-2026-14932 (6.5 Medium, published 22 Jul 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-36: Absolute Path Traversal) in other software:

• CVE-2026-54202 (published 7 Aug 2026)
• CVE-2026-13346 (published 29 Jul 2026)
• CVE-2026-57211 (6.5 Medium, published 10 Jul 2026)
• CVE-2026-15302 (5.3 Medium, published 10 Jul 2026)
• CVE-2026-58300 (6.2 Medium, published 3 Jul 2026)
• CVE-2026-53698 (6.5 Medium, published 10 Jun 2026)
• CVE-2026-10075 (5.3 Medium, published 29 May 2026)
• CVE-2026-10044 (7.5 High, published 28 May 2026)

Details

Affected Packages

References