CVE-2026-114362: HarnessRouter Targets Test Endpoint app.py server-side request forgery

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-21 · updated 2026-10-28
Weakness: CWE-918

Description

A flaw has been found in HarnessRouter up to 0.31.12. This impacts an unknown function of the file gateway/app.py of the component Targets Test Endpoint. Executing a manipulation of the argument base_url can lead to server-side request forgery. The attack may be performed from remote. Upgrading to version 0.31.13 will fix this issue. This patch is called 1c4b1fc1f89737dabd089ac1d1c174a57f764e28. It is suggested to upgrade the affected component.

Affected products

HarnessRouter: 0.31.0, 0.31.1, 0.31.2, 0.31.3, 0.31.4, 0.31.5 (+7)

References

https://github.com/HarnessRouter/harnessrouter/
https://github.com/HarnessRouter/harnessrouter/commit/1c4b1fc1f89737dabd089ac1d1c174a57f764e28
https://github.com/HarnessRouter/harnessrouter/pull/429
https://github.com/HarnessRouter/harnessrouter/releases/tag/v0.31.13
https://github.com/HarnessRouter/harnessrouter/security/advisories/GHSA-c5g7-c47h-f6c3
https://vuldb.com/cve/CVE-2026-114362
https://vuldb.com/submit/1019387
https://vuldb.com/vuln/424709
https://vuldb.com/vuln/424709/cti

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