Medium [CVE-2026-85063] Prototype pollution via malicious CSV header
This medium-severity Red Hat Linux advisory covers CVE-2026-85063 affecting Red Hat Developer Hub, Red Hat Fuse 7, Red Hat Hardened Images.
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Summary
A flaw was found in node-csv, specifically within its csv-parse component. When configured with columns and group_columns_by_name options, a remote attacker can craft a malicious CSV header to manipulate the __proto__ property.
This allows the injection of attacker-controlled values into the parsed record's prototype, leading to information disclosure. This vulnerability can also affect property enumeration and type or shape checks in applications processing the record.
Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L). Weakness: CWE-915.
Affected Red Hat products: Red Hat Developer Hub; Red Hat Fuse 7; Red Hat Hardened Images; Self-service automation portal 2. Will not fix / out of support: Red Hat Fuse 7.
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 · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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