Nghttp2
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1- 11 CVEs
Recent CVEs
11| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2023-44487 | Hig | 0.65 | 7.5 | 1.00 | KEV | Oct 10, 2023 | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. | |
| CVE-2015-8659 | Cri | 0.65 | 10.0 | 0.04 | Jan 12, 2016 | The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug. | ||
| CVE-2017-2428 | Cri | 0.64 | 9.8 | 0.03 | Apr 2, 2017 | An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves nghttp2 before 1.17.0 in the "HTTPProtocol" component. It allows remote HTTP/2… | ||
| CVE-2018-1000168 | Hig | 0.50 | 7.5 | 0.11 | May 8, 2018 | nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability… | ||
| CVE-2024-25581 | Hig | 0.49 | 7.5 | 0.01 | May 14, 2024 | When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing… | ||
| CVE-2026-27135 | Hig | 0.42 | 7.5 | 0.01 | Mar 18, 2026 | nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the… | ||
| CVE-2024-27316 | 0.07 | — | 0.91 | Apr 4, 2024 | HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion. | |||
| CVE-2024-28182 | 0.07 | — | 0.85 | Apr 4, 2024 | 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… | |||
| CVE-2026-58055 | 0.00 | — | 0.00 | Jun 28, 2026 | nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that… | |||
| CVE-2020-11080 | 0.00 | — | 0.05 | Jun 3, 2020 | In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again.… | |||
| CVE-2016-1544 | 0.00 | — | 0.01 | Feb 6, 2020 | nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion). |
- risk 0.65cvss 7.5epss 1.00
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
- risk 0.65cvss 10.0epss 0.04
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
- risk 0.64cvss 9.8epss 0.03
An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves nghttp2 before 1.17.0 in the "HTTPProtocol" component. It allows remote HTTP/2…
- risk 0.50cvss 7.5epss 0.11
nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability…
- risk 0.49cvss 7.5epss 0.01
When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing…
- risk 0.42cvss 7.5epss 0.01
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the…
- CVE-2024-27316Apr 4, 2024risk 0.07cvss —epss 0.91
HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.
- CVE-2024-28182Apr 4, 2024risk 0.07cvss —epss 0.85
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…
- CVE-2026-58055Jun 28, 2026risk 0.00cvss —epss 0.00
nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that…
- CVE-2020-11080Jun 3, 2020risk 0.00cvss —epss 0.05
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again.…
- CVE-2016-1544Feb 6, 2020risk 0.00cvss —epss 0.01
nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion).