CVE-2026-78661
Avoid quadratic complexity when coalescing text nodes in html in golang.org/x/net
02 Description
Avoid quadratic complexity when coalescing text nodes in html in golang.org/x/net
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.18% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 8.0% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-28.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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
- 2026-10-27 21:38Z1 DAY AGO
- Last updated
- 2026-10-27 21:38Z1 DAY AGO
- Reserved
- 2026-08-24
- Assigning CNA
- Go
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.2
- Document digest
- 474bea6be369ac9ce7c74ee264df1c8dda3672cdb2a6b98b0cfa15af2a3634eb
05 Affected products
06 References
- go.devhttps://go.dev/cl/849365
- go.devhttps://go.dev/issue/82224
- groups.google.comhttps://groups.google.com/g/golang-announce/c/sqrs2vTx_Xs
- pkg.go.devhttps://pkg.go.dev/vuln/GO-2026-6860
07 Fixed in
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 No fix yet
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 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 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 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
- 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.