Debian Nghttp2 vulnerabilities

CVE-2026-27135 [HIGH] CVE-2026-27135: nghttp2 - nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. ... 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 application. They might be called internally by the library when it detects the situation

CVE-2024-28182 [MEDIUM] CVE-2024-28182: nghttp2 - nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. ... 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

CVE-2023-44487 [HIGH] CVE-2023-44487: dnsdist - The HTTP/2 protocol allows a denial of service (server resource consumption) bec... 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. Scope: local bookworm: open bullseye: open forky: resolved (fixed in 1.8.2-2) sid: resolved (fixed in 1.8.2-2) trixie: resolved (fixed in 1.8.2-2)

CVE-2020-11080 [LOW] CVE-2020-11080: nghttp2 - In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload... 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. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. Ther

CVE-2019-9511 [HIGH] CVE-2019-9511: nghttp2 - Some HTTP/2 implementations are vulnerable to window size manipulation and strea... Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how

CVE-2019-9513 [HIGH] CVE-2019-9513: nghttp2 - Some HTTP/2 implementations are vulnerable to resource loops, potentially leadin... Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU. Scope: local bookworm: resolved (fixed in 1.39.2-1) bullseye: resolved (fix

CVE-2018-1000168 [HIGH] CVE-2018-1000168: nghttp2 - nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Vali... nghttp2 version >= 1.10.0 and nghttp2 = 1.31.1. Scope: local bookworm: resolved (fixed in 1.31.1-1) bullseye: resolved (fixed in 1.31.1-1) forky: resolved (fixed in 1.31.1-1) sid: resolved (fixed in 1.31.1-1) trixie: resolved (fixed in 1.31.1-1)

CVE-2016-1544 [LOW] CVE-2016-1544: nghttp2 - nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memor... nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion). Scope: local bookworm: resolved (fixed in 1.7.1-1) bullseye: resolved (fixed in 1.7.1-1) forky: resolved (fixed in 1.7.1-1) sid: resolved (fixed in 1.7.1-1) trixie: resolved (fixed in 1.7.1-1)

CVE-2015-8659 [CRITICAL] CVE-2015-8659: nghttp2 - The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspec... 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. Scope: local bookworm: resolved (fixed in 1.6.0-1) bullseye: resolved (fixed in 1.6.0-1) forky: resolved (fixed in 1.6.0-1) sid: resolved (fixed in 1.6.0-1) trixie: resolved (fixed in 1.6.0-1)