CVE-2026-78669
Excessive CPU consumption from repeated initial window changes in net/http
02 Description
Excessive CPU consumption from repeated initial window changes in net/http
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.
- EPSS probability
- 0.61% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 49.1% 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
- Awaiting Analysis. NVD last modified this record on 2026-10-09.
- 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
- 2026-10-08 22:53Z20 DAYS AGO
- Last updated
- 2026-10-09 16:32Z19 DAYS AGO
- Reserved
- 2026-08-24
- 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
- Data version
- 5.2
- Document digest
- c08de2477f16c40017954d1464aa8c61c7e3e873b657b1cd70be43632d8db9cb
05 Affected products
06 References
- go.devhttps://go.dev/cl/847186
- go.devhttps://go.dev/cl/847308
- go.devhttps://go.dev/issue/81742
- groups.google.comhttps://groups.google.com/g/golang-announce/c/U2fTuyDJznI
- groups.google.comhttps://groups.google.com/g/golang-announce/c/ZPwCyRUuGBs
- pkg.go.devhttps://pkg.go.dev/vuln/GO-2026-6611
07 Fixed in
AlmaLinux 8
- delve Fixed in 1.26.1-1.module_el8.10.0+4307+6e4cbc60
- go-toolset Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-bin Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-docs Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-misc Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-race Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-src Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-tests Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- grafana Fixed in 9.2.10-36.el8_10
- grafana-pcp Fixed in 5.1.1-19.el8_10
- grafana-selinux Fixed in 9.2.10-36.el8_10
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 1.26.10-1.el9_8
- golang Fixed in 1.26.10-1.el9_8
- golang-bin Fixed in 1.26.10-1.el9_8
- golang-docs Fixed in 1.26.10-1.el9_8
- golang-misc Fixed in 1.26.10-1.el9_8
- golang-race Fixed in 1.26.10-1.el9_8
- golang-src Fixed in 1.26.10-1.el9_8
- golang-tests Fixed in 1.26.10-1.el9_8
- grafana Fixed in 10.2.6-23.el9_8.7
- grafana-pcp Fixed in 5.1.1-17.el9_8.2
- grafana-selinux Fixed in 10.2.6-23.el9_8.7
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- buildah Fixed in 2:1.43.1-7.el10_2
- buildah-tests Fixed in 2:1.43.1-7.el10_2
- go-toolset Fixed in 1.26.10-1.el10_2.alma.1
- golang Fixed in 1.26.10-1.el10_2.alma.1
- golang-bin Fixed in 1.26.10-1.el10_2.alma.1
- golang-docs Fixed in 1.26.10-1.el10_2.alma.1
- golang-misc Fixed in 1.26.10-1.el10_2.alma.1
- golang-race Fixed in 1.26.10-1.el10_2.alma.1
- golang-src Fixed in 1.26.10-1.el10_2.alma.1
- golang-tests Fixed in 1.26.10-1.el10_2.alma.1
- grafana-pcp Fixed in 5.3.0-8.el10_2.2
- ipp-usb Fixed in 0.9.27-7.el10_2.4
- podman Fixed in 7:5.8.2-11.el10_2.alma.1
- podman-docker Fixed in 7:5.8.2-11.el10_2.alma.1
- podman-remote Fixed in 7:5.8.2-11.el10_2.alma.1
- podman-tests Fixed in 7:5.8.2-11.el10_2.alma.1
- yggdrasil Fixed in 0.4.9.2-1.el10_2.4
- yggdrasil-devel Fixed in 0.4.9.2-1.el10_2.4
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 1.26.1-1.module_el8.10.0+4307+6e4cbc60
- go-toolset Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-bin Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-docs Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-misc Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-race Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-src Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- golang-tests Fixed in 1.26.10-1.module_el8.10.0+4307+6e4cbc60
- grafana Fixed in 9.2.10-36.el8_10
- grafana-pcp Fixed in 5.1.1-19.el8_10
- grafana-selinux Fixed in 9.2.10-36.el8_10
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 1.26.10-1.el9_8
- golang Fixed in 1.26.10-1.el9_8
- golang-bin Fixed in 1.26.10-1.el9_8
- golang-docs Fixed in 1.26.10-1.el9_8
- golang-misc Fixed in 1.26.10-1.el9_8
- golang-race Fixed in 1.26.10-1.el9_8
- golang-src Fixed in 1.26.10-1.el9_8
- golang-tests Fixed in 1.26.10-1.el9_8
- grafana Fixed in 10.2.6-23.el9_8.7
- grafana-pcp Fixed in 5.1.1-17.el9_8.2
- grafana-selinux Fixed in 10.2.6-23.el9_8.7
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.
CloudLinux 10
- buildah Fixed in 2:1.43.1-7.el10_2
- buildah-tests Fixed in 2:1.43.1-7.el10_2
- go-toolset Fixed in 1.26.10-1.el10_2.alma.1
- golang Fixed in 1.26.10-1.el10_2.alma.1
- golang-bin Fixed in 1.26.10-1.el10_2.alma.1
- golang-docs Fixed in 1.26.10-1.el10_2.alma.1
- golang-misc Fixed in 1.26.10-1.el10_2.alma.1
- golang-race Fixed in 1.26.10-1.el10_2.alma.1
- golang-src Fixed in 1.26.10-1.el10_2.alma.1
- golang-tests Fixed in 1.26.10-1.el10_2.alma.1
- grafana-pcp Fixed in 5.3.0-8.el10_2.2
- ipp-usb Fixed in 0.9.27-7.el10_2.4
- podman Fixed in 7:5.8.2-11.el10_2.alma.1
- podman-docker Fixed in 7:5.8.2-11.el10_2.alma.1
- podman-remote Fixed in 7:5.8.2-11.el10_2.alma.1
- podman-tests Fixed in 7:5.8.2-11.el10_2.alma.1
- yggdrasil Fixed in 0.4.9.2-1.el10_2.4
- yggdrasil-devel Fixed in 0.4.9.2-1.el10_2.4
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 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-1.19 No fix yet
- 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-1.24 No fix yet
- 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-1.26 Fixed in 1.26.9-1
- golang-1.27 Fixed in 1.27.2-1
- golang-golang-x-net Fixed in 1:0.60.0-1
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
- 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 No fix yet
- containerd No fix yet
- 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 Fixed in 1.22.2-2~22.04.4
- 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 No fix yet
- golang-1.21 No fix yet
- golang-1.22 Fixed in 1.22.2-2ubuntu0.5
- 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 26.04 LTS
- adsys 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 26.10
- adsys No fix yet
- containerd No fix yet
- 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 No fix yet
- 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 No fix yet
- 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 No fix yet
- containerd No fix yet
- 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
- containerd No fix yet
- 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.
Ubuntu Pro 26.04 LTS
- containerd 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.