Microsoft · Avoid quadratic complexity when coalescing text nodes in html in golang.org/x/net
Affects MicrosoftSource GCVE Database
Not known to be exploited.
Data as of 31 Oct 2026, 08:23 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 27 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Gogolang.org/x/netpkg:golang/golang.org/x/netOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, users should be aware of potential performance impacts when processing HTML with the affected version.
Description
A vulnerability identified as CVE-2026-78661 involves quadratic complexity when coalescing text nodes in the golang.org/x/net package. The issue is specifically noted in version 3.0 of the affected software. No CVSS score or detailed impact information is provided.