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CVE-2026-42582 Netty: HTTP/3 QPACK literal unbounded allocation

🗓️ 13 May 2026 18:06:55Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 56 Views

Netty before 4.2.13.Final could allocate unbounded memory decoding header literals in HTTP three.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins
Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
27 May 202606:40
–ibm
bdu_fstec
BDU FSTEC
Netty QpackDecoder DoS
17 Jul 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-42582 vulnerabilities
8 May 202613:17
–cgr
circl
Circl
CVE-2026-42582
5 May 202618:10
–circl
cnnvd
CNNVD
Netty 安全漏洞
13 May 202600:00
–cnnvd
cve
CVE
CVE-2026-42582
13 May 202618:06
–cve
debiancve
Debian CVE
CVE-2026-42582
13 May 202618:06
–debiancve
github
Github Security Blog
Netty HTTP/3 QPACK literal unbounded allocation
7 May 202600:19
–github
mend
Mend
CVE-2026-42582
13 May 202618:06
–mend
nvd
NVD
CVE-2026-42582
13 May 202619:17
–nvd
Rows per page
[
  {
    "vendor": "netty",
    "product": "netty",
    "versions": [
      {
        "version": ">= 4.2.0.Alpha1, < 4.2.13.Final",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "io.netty",
    "product": "netty-codec-http3",
    "versions": [
      {
        "version": ">= 4.2.0.Alpha1, < 4.2.13.Final",
        "status": "affected"
      }
    ]
  }
]

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13 May 2026 18:07Current
CVSS 3.17.5
EPSS0.00486
SSVC
56