CVE-2026-48856
CSIRTS triage
- What
- The Authorization header is leaked to cross-origin redirect targets.
- Who is affected
- Deployments using httpc are affected.
- Urgency
- Remediation is necessary due to medium severity, with no current exploitation reported.
- Action
- Apply the patch for CVE-2026-48856.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2026-48856: httpc leaks Authorization header to cross-origin redirect targetsmsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-48856)