Cyber Resilience

CVE-2026-15371

Published
18 August 2026
Modified
19 August 2026
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
EPSS Score 0.0021 11th percentile
Risk Priority 51 floored blend · peak EPSS

Summary

CVE-2026-15371 is a high-severity Hex Encoding (CWE-177) vulnerability in Velociraptor (inferred from references). Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 11th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Velociraptor's web GUI allows specifying a custom type for columns in tables. The URL type takes the cell value and forms a URL which can be clicked in the GUI.The code does not limit the schemes allowed in this URL…

more

, allowing an attacker to specify a JavaScript scheme exposing the user to XSS.

CWE(s)
CWE-177

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-29045Shared CWE-177
CVE-2024-48866Shared CWE-177
CVE-2026-6414Shared CWE-177
CVE-2026-22031Shared CWE-177
CVE-2026-41041Shared CWE-177
CVE-2026-59083Shared CWE-177
CVE-2025-11990Shared CWE-177
CVE-2026-22037Shared CWE-177
CVE-2024-23983Shared CWE-177

Affected Assets

Velociraptor
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.2

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Proper input validation requires decoding and checking URL-encoded data before use, directly stopping the weakness from being exploitable.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require correct URL-encoding/decoding and input validation during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches URL-decoding flaws before release, but does not itself define coding rules.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC processes include validation steps that reduce CWE-177, yet the control is broader than this single weakness.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for input validation and canonicalization, directly preventing improper URL decoding.

A.8.28 Secure coding partial match
prevents

Secure coding standards mandate proper handling and decoding of encoded inputs, eliminating CWE-177.

References