Highest advisory severityHigh 1 vendor · 1 advisory
CVE-2026-55556
CVE-2026-55556: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-55556] Denial of Service via heap buffer overflow in imhttp module
CVE-2026-55556Source published Source updated
Denial of Service via heap buffer overflow in imhttp module. Red Hat rates this important (CVSS 7.5). Weakness: CWE-131.
- Related products — impact not confirmed
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- 8.2604.0
- Mitigation guidance
- To mitigate this issue, ensure that the `imhttp` module is not loaded or configured with Basic Authentication if not strictly required. If the `imhttp` module is in use, review its configuration to remove Basic Authentication settings. After making configuration changes, the rsyslog service must be restarted for the changes to take effect.
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