🛡️ CVE-2026-13186 — telerik-ui-for-asp.net-ajax

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, 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 high, availability high.

CVSS metrics in full

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

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• 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: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2026-13186 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

CVE-2026-13186 is recorded against 1 package.

• telerik-ui-for-asp.net-ajax (from 2013.1.220 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-2026-13182 (7.5 High, published 22 Jul 2026)
• CVE-2026-13189 (7.5 High, published 22 Jul 2026)
• CVE-2026-13181 (8.1 High, published 22 Jul 2026)
• CVE-2026-13188 (5.9 Medium, published 22 Jul 2026)
• CVE-2026-14932 (6.5 Medium, published 22 Jul 2026)
• CVE-2026-13187 (8.1 High, published 22 Jul 2026)
• CVE-2026-13185 (8.1 High, published 22 Jul 2026)
• CVE-2026-14865 (5.3 Medium, published 22 Jul 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-22: Path Traversal) in other software:

• CVE-2016-1000305 (published 31 Jul 2026)
• CVE-2022-47951 (5.7 Medium, published 13 Jul 2026)
• CVE-2022-39210 (5.0 Medium, published 12 Jul 2026)
• CVE-2023-41057 (2.0 Low, published 7 Jul 2026)
• CVE-2023-0241 (6.5 Medium, published 7 Jul 2026)
• CVE-2023-51232 (7.5 High, published 7 Jul 2026)
• CVE-2023-47890 (8.8 High, published 7 Jul 2026)
• CVE-2022-4510 (8.0 High, published 7 Jul 2026)

Details

Affected Packages

References