High [CVE-2026-89011] Information disclosure via prototype pollution in getRemoteInfo function.
This high-severity Red Hat Linux advisory covers CVE-2026-89011 affecting Red Hat Developer Hub, Self-service automation portal 2.
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Summary
A flaw was found in isomorphic-git. This prototype pollution vulnerability in the getRemoteInfo function allows a malicious Git server operator to manipulate object properties by advertising specially crafted reference names.
This can reroute network operations through an attacker-controlled proxy, leading to the transmission of user credentials to the attacker. Red Hat severity: Important — CVSS 7.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N).
Weakness: CWE-915. Affected Red Hat products: Red Hat Developer Hub; Self-service automation portal 2.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 18 minutes ago·verify at source
- 1.42.0
Official advisory · high-confidence parse· fetched 18 minutes ago·verify at source
Mitigation
Upgrade to a fixed release: 1.42.0. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 18 minutes ago·verify at source
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