GHSA-8R5V-VM4M-4G25: h2 Crates.Io

Published
AliasesRUSTSEC-2024-0003
Published 17-01-2024Last modified 04-02-2026

Vulnerability summary

GHSA-8R5V-VM4M-4G25 is a vulnerability in h2 Crates.Io with no CVSS score yet.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 5
CGA-799R-992X-2Q89CGA-J8MV-CVM8-5VWHCGA-MRHF-84MP-P33MCGA-R38F-M4V9-8FRVCGA-R39C-9293-M773CGA-W49V-R48C-G7QG

Timeline

  1. 17-01-2024
    PublishedVulnerability first disclosed.
  2. 04-02-2026
    Last modifiedVulnerability information updated.

Description

Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS) An attacker with an HTTP/2 connection to an affected endpoint can send a steady stream of invalid frames to force the generation of reset frames on the victim endpoint. By closing their recv window, the attacker could then force these resets to be queued in an unbounded fashion, resulting in Out Of Memory (OOM) and high CPU usage. This fix is corrected in [hyperium/h2#737](https://github.com/hyperium/h2/pull/737), which limits the total number of internal error resets emitted by default before the connection is closed.

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Crates.Io1 product
  • h2< 0.3.24 | ≥ 0.4.0, < 0.4.2 | ≥ 0.4.0-0, < 0.4.2

1 vendor · 1 product

References

7 links