synced 5 MIN AGO
01 Record

CVE-2026-33814

Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

HighPUBLISHEDCNA: Go
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
View raw JSON

02 Description

Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.84% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 57.5% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-26.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-05-07 19:41Z5 MO AGO
Last updated
2026-09-18 12:04Z1 MO AGO
Reserved
2026-03-23
Assigning CNA
Go
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
  • CWE-606Unchecked Input for Loop ConditionBase
Data version
5.2
Document digest
752c8b14fd548d4b29d285bd19f6c3973f2aef27ca8d1db25bdd6f09d90d08b9

05 Affected products

VendorProductVersionsPlatforms
golang.org/x/netgolang.org/x/net/http20 to < 0.53.0—
Go standard librarynet/http0 to < 1.25.10, 1.26.0-0 to < 1.26.3—

06 References

07 Fixed in

AlmaLinux 8

  • delve
    Fixed in 1.25.2-1.module_el8.10.0+4074+24330916
  • go-toolset
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-bin
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-docs
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-misc
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-race
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-src
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-tests
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • go-toolset
    Fixed in 1.26.3-1.el9_8
  • golang
    Fixed in 1.26.3-1.el9_8
  • golang-bin
    Fixed in 1.26.3-1.el9_8
  • golang-docs
    Fixed in 1.26.3-1.el9_8
  • golang-misc
    Fixed in 1.26.3-1.el9_8
  • golang-race
    Fixed in 1.26.3-1.el9_8
  • golang-src
    Fixed in 1.26.3-1.el9_8
  • golang-tests
    Fixed in 1.26.3-1.el9_8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • delve
    Fixed in 1.25.2-1.module_el8.10.0+4074+24330916
  • go-toolset
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-bin
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-docs
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-misc
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-race
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-src
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4
  • golang-tests
    Fixed in 1.25.10-1.module_el8.10.0+4187+c45165c4

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • go-toolset
    Fixed in 1.26.3-1.el9_8
  • golang
    Fixed in 1.26.3-1.el9_8
  • golang-bin
    Fixed in 1.26.3-1.el9_8
  • golang-docs
    Fixed in 1.26.3-1.el9_8
  • golang-misc
    Fixed in 1.26.3-1.el9_8
  • golang-race
    Fixed in 1.26.3-1.el9_8
  • golang-src
    Fixed in 1.26.3-1.el9_8
  • golang-tests
    Fixed in 1.26.3-1.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • golang-golang-x-net
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • golang-golang-x-net
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • golang-golang-x-net
    Fixed in 1:0.53.0-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • golang-1.10
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • golang-1.10
    No fix yet
  • golang-1.6
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • golang-1.10
    No fix yet
  • golang-1.8
    No fix yet
  • golang-1.9
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • golang-1.13
    No fix yet
  • golang-1.14
    No fix yet
  • golang-1.18
    No fix yet
  • golang-1.20
    No fix yet
  • golang-1.21
    No fix yet
  • golang-1.22
    No fix yet
  • lxd
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • adsys
    Fixed in 0.16.3~22.04.2ubuntu0.22.04.1
  • containerd
    Fixed in 1.6.12-0ubuntu1~22.04.11
  • containerd-app
    Fixed in 2.2.1-0ubuntu1~22.04.2
  • golang-1.17
    No fix yet
  • golang-1.18
    No fix yet
  • golang-1.20
    No fix yet
  • golang-1.21
    No fix yet
  • golang-1.22
    No fix yet
  • golang-1.23
    No fix yet
  • golang-1.24
    No fix yet
  • golang-1.25
    No fix yet
  • golang-1.26
    No fix yet
  • golang-golang-x-net
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • adsys
    Fixed in 0.16.3~24.04.2ubuntu0.24.04.1
  • containerd-app
    Fixed in 2.2.1-0ubuntu1~24.04.3
  • golang-1.21
    No fix yet
  • golang-1.22
    No fix yet
  • golang-1.23
    No fix yet
  • golang-1.24
    No fix yet
  • golang-1.25
    No fix yet
  • golang-1.26
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • adsys
    Fixed in 0.16.3ubuntu0.25.10.2
  • containerd-app
    Fixed in 2.2.1-0ubuntu1~25.10.2
  • containerd-stable
    Fixed in 2.1.6-0ubuntu1~25.10.2
  • golang-golang-x-net
    No fix yet
  • google-guest-agent
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • adsys
    Fixed in 0.16.4ubuntu1.1
  • containerd-app
    Fixed in 2.2.2-0ubuntu1.1
  • containerd-stable
    Fixed in 2.2.2-0ubuntu1.1
  • golang-1.23
    No fix yet
  • golang-1.24
    No fix yet
  • golang-1.25
    No fix yet
  • golang-1.26
    No fix yet
  • golang-golang-x-net
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • golang-1.26
    No fix yet
  • golang-1.27
    No fix yet
  • golang-golang-x-net
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • containerd
    Fixed in 1.2.6-0ubuntu1~16.04.6+esm7
    Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro
  • golang-1.13
    No fix yet
  • golang-1.18
    No fix yet
  • golang-golang-x-net-dev
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet
  • juju-core
    No fix yet
  • lxd
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • containerd
    Fixed in 1.6.12-0ubuntu1~18.04.1+esm4
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • golang-1.13
    No fix yet
  • golang-1.16
    No fix yet
  • golang-1.18
    No fix yet
  • golang-golang-x-net-dev
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet
  • lxd
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • adsys
    Fixed in 0.9.2~20.04.2ubuntu0.1+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • containerd
    Fixed in 1.6.12-0ubuntu1~20.04.8+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • containerd-app
    Fixed in 1.7.24-0ubuntu1~20.04.2+esm2
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • golang-1.16
    No fix yet
  • golang-golang-x-net-dev
    No fix yet
  • google-guest-agent
    No fix yet
  • google-osconfig-agent
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 22.04 LTS

  • golang-1.13
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 24.04 LTS

  • golang-golang-x-net
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.