CVE-2022-48476 — In JetBrains Ktor before 2

In JetBrains Ktor before 2.3.0 path traversal in the `resolveResource` method was possible

01What is this vulnerability?

In JetBrains Ktor before 2.3.0 path traversal in the `resolveResource` method was possible

02Affected products

Vendor	Product	Versions
JetBrains	Ktor	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-04-24T12:21:25.846Z
• Last modified: 2025-02-04T16:22:45.322Z

09References

• www.jetbrains.com — https://www.jetbrains.com/privacy-security/issues-fixed/