h2 (crates.io)

Advisories

Latest version

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License

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OpenSSF Scorecard

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How to fix

Upgrading to 0.4.16 or later clears every advisory below that has a fix.

Upgrade commands

cargo

cargo update -p h2 --precise 0.4.16

Known vulnerabilities

Advisory	Severity	Affected	Fixed in
RUSTSEC-2026-0258 h2 unbounded empty DATA frames	Not rated yet	`>= 0.0.0-0, < 0.4.16`	`0.4.16`
GHSA-q6cp-qfwq-4gcv h2 servers vulnerable to degradation of service with CONTINUATION Flood	Medium	`< 0.3.26`	`0.3.26`
GHSA-q6cp-qfwq-4gcv h2 servers vulnerable to degradation of service with CONTINUATION Flood	Medium	`>= 0.0.0-0, < 0.3.26` `>= 0.4.0-0, < 0.4.4`	`0.3.26` `0.4.4`
GHSA-q6cp-qfwq-4gcv h2 servers vulnerable to degradation of service with CONTINUATION Flood	Medium	`>= 0.4.0, < 0.4.4`	`0.4.4`
GHSA-8r5v-vm4m-4g25 Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)	High EPSS 82.81%	`>= 0.4.0, < 0.4.2`	`0.4.2`
GHSA-8r5v-vm4m-4g25 Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)	High EPSS 82.81%	`< 0.3.24`	`0.3.24`
GHSA-8r5v-vm4m-4g25 Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)	High EPSS 82.81%	`>= 0.0.0-0, < 0.3.24` `>= 0.4.0-0, < 0.4.2`	`0.3.24` `0.4.2`
GHSA-f8vr-r385-rh5r h2 vulnerable to denial of service	High EPSS 1.12%	`< 0.3.17`	`0.3.17`
GHSA-f8vr-r385-rh5r h2 vulnerable to denial of service	High EPSS 1.12%	`>= 0.0.0-0, < 0.3.17`	`0.3.17`

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