# CVE-2026-88136: WebDAV path equivalence improper resolution code execution

Source: https://junglewise.ai/threats/cve-2026-88136-improper-resolution-of-path-equivalence-in-webdav-allows-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-88136 · Severity: high · CVSS 8.8 · Published 2026-10-13

A flaw in WebDAV path handling allows an authenticated attacker to bypass security controls and execute arbitrary code on a remote system. An attacker with valid WebDAV credentials could leverage this vulnerability to gain unauthorized code execution, potentially leading to data theft, system compromise, or lateral movement within a network.

Technologies: [<UNKNOWN>](https://junglewise.ai/threats/technologies/x-unknown).

## Quick answers

**Is CVE-2026-88136 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88136 being exploited in the wild.

**How severe is CVE-2026-88136?** High severity, with a CVSS score of 8.8, published 13 October 2026.

**Which products and versions are affected?** <UNKNOWN>.

**Is there a fix for CVE-2026-88136?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-88136 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-88136?** Check whether you run <UNKNOWN>. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exists in improper path equivalence resolution within WebDAV, allowing an authenticated network attacker to execute arbitrary code. The flaw enables path traversal or canonicalization bypass attacks on WebDAV-enabled systems, granting unauthorized code execution capabilities to attackers with valid credentials.

## Affected products

- <UNKNOWN>

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88136](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88136)

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