CVE-2026-56306: Capgo - Subkey Enforcement Bypass via x-limited-key-id Header Parsing
Fixed in 12.128.2 · Affected: Capgo before 12.128.2 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 23% of scored CVEs
DescriptionCVE.org
Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header to disable limited key scoping and execute requests using the main API key context instead of restricted subkey permissions.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Capgo · Capgobefore 12.128.2
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-56306 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.