VDB

CVE-2026-33814

CVE-2026-33814 PUBLISHED CVSS 7.5 HIGH

Reported by go · Published May 7, 2026

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
gatekeeper-3.20Chainguard3.20.1-r13
kubevirt-cdi-uploadproxy-1.5Chainguard1.59.2-r4
eks-distro-fips-1.31Chainguard1.31.44-r1
pluto-fipsChainguard5.24.0-r1
gatekeeper-3.21Chainguard3.21.1-r9
guacChainguard1.1.0-r8
k3s-1.31Chainguard1.31.6.1-r21
chartmuseum-fipsChainguard0.16.5-r6
delve-debugsourceerrata.rockylinux.org1.25.2-1.module
terraform-provider-googleWolfi7.31.0-r2
cloudbeat-fips-9.4Chainguard9.4.0-r3
mattermost-11.4Chainguard11.4.5-r0

74 more packages have a fixed version. See every fix in Lookup.

Risk scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersions
golang.org/x/netgolang.org/x/net/http20
Go standard librarynet/http0, 1.26.0-0
Red HatSelf Node Remediation Operator
chainguardgatekeeper-3.200
chainguardkubevirt-cdi-uploadproxy-1.50
Red HatRed Hat Advanced Cluster Management for Kubernetes 2
Red HatRed Hat OpenShift Container Platform 4
Red HatRed Hat OpenShift Container Platform 4
chainguardeks-distro-fips-1.310
chainguardpluto-fips0
chainguardgatekeeper-3.210, *
chainguardguac0, *
chainguardsftpgo-plugin-eventsearch*
Red HatRed Hat OpenShift Container Platform 4.191787559760
chainguardk3s-1.310
chainguardchartmuseum-fips0
chainguardnode-problem-detector-1.35*
wolfirancher-telemetry*
chainguardtenv*
wolfiterraform-provider-google0

…and 4369 more

Timeline

  • May 7, 2026 CVE Published
  • May 7, 2026 PoC Published
  • May 18, 2026 EPSS Score (30 in total, the first dated here)
  • Jun 2, 2026 Security Advisory (157 in total, the first dated here)
  • Aug 7, 2026 Coalition ESS Score
  • Aug 10, 2026 CVE Updated
  • Aug 11, 2026 Distribution Patch (138 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-33814
vulnetix vdb fixes CVE-2026-33814

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-33814/fixes/registry"

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References

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