--- title: "CVE-2024-28182: Reading unbounded number of HTTP/2… | CubePath" description: "nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded…" language: en source: https://cubepath.com/security/cve/CVE-2024-28182 --- # CVE-2024-28182: Reading unbounded number of HTTP/2… | CubePath ## Description nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability. Official description from the CVE record, published by GitHub\_M. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-28182) ## Key data ### CVSS 3.1 Medium 5.3 Score published by GitHub\_M in the CVE record. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | None | No effect on the secrecy of data. | | Integrity impact | None | No effect on the trustworthiness of data. | | Availability impact | Low | Limited effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.81994 (82.0% probability) Percentile 99.7% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of Apr 4, 2024 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Automatable yes Technical impact partial ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-770](https://cwe.mitre.org/data/definitions/770.html) Allocation of Resources Without Limits or Throttling ## Affected products Products listed in the CVE record, as the CNA published them. - nghttp2 - affected: < 1.61.0 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [github.com/nghttp2/nghttp2/security/advisories/GHSA-x6x3-gv…](https://github.com/nghttp2/nghttp2/security/advisories/GHSA-x6x3-gv8h-m57q) - [github.com/nghttp2/nghttp2/commit/00201ecd8f982da3b67d4f686…](https://github.com/nghttp2/nghttp2/commit/00201ecd8f982da3b67d4f6868af72a1b03b14e0) - [github.com/nghttp2/nghttp2/commit/d71a4668c6bead55805d18810…](https://github.com/nghttp2/nghttp2/commit/d71a4668c6bead55805d18810d633fbb98315af9) - [lists.fedoraproject.org/archives/list/package-announce@list…](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AGOME6ZXJG7664IPQNVE3DL67E3YP3HY/) - [lists.fedoraproject.org/archives/list/package-announce@list…](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J6ZMXUGB66VAXDW5J6QSTHM5ET25FGSA/) - [lists.fedoraproject.org/archives/list/package-announce@list…](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXJO2EASHM2OQQLGVDY5ZSO7UVDVHTDK/) - [lists.debian.org/debian-lts-announce/2024/04/msg00026.html](https://lists.debian.org/debian-lts-announce/2024/04/msg00026.html) - [openwall.com/lists/oss-security/2024/04/03/16](http://www.openwall.com/lists/oss-security/2024/04/03/16) - [lists.debian.org/debian-lts-announce/2024/09/msg00041.html](https://lists.debian.org/debian-lts-announce/2024/09/msg00041.html) - [kb.cert.org/vuls/id/421644](https://www.kb.cert.org/vuls/id/421644) ## Timeline 1. ID reserved Mar 6, 2024 2. Record published Apr 4, 2024 3. Record last updated Oct 15, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:02 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)