CVE-2024-7246
MEDIUMDescription
It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It's also possible to use this vulnerability to leak other clients HTTP header keys, but not values. This occurs because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table. Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.
How to fix
This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.
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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 13% of all known CVEs.
References
Related Vulnerabilities
Other CWE-440 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2019-5108 | Medium | 6.5 | 10% | - | Fix |
| CVE-2023-6129 | Medium | 6.5 | 2.3% | - | Fix |
| CVE-2021-41035 | Critical | 9.8 | 1.8% | - | Fix |
| CVE-2018-12550 | High | 8.1 | 1.4% | - | Fix |
| CVE-2019-6569 | Critical | 9.1 | 1.3% | - | Fix |
| CVE-2023-2088 | Medium | 6.5 | 1.2% | - | Fix |
Common questions
How do I fix CVE-2024-7246?
Published advisories record a fix for 1125 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2024-7246 being actively exploited?
Not that we know of. CVE-2024-7246 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.22% is the estimated probability that it will be exploited in the next 30 days. That is higher than 13% of all scored CVEs.
How severe is CVE-2024-7246?
CVE-2024-7246 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2024-7246 affect?
Published advisories record a fix for ansible-collection-community-crypto (Rocky), ansible-collection-community-crypto (Red Hat / RHEL), ansible-collection-redhat-satellite (Rocky), ansible-collection-redhat-satellite (Red Hat / RHEL), and 1121 more. The list on this page is capped, so there may be more.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-07-22.