CVE-2026-56859: Add recursion depth guard during decode in encoding/xml
Go standard library · encoding/xml
Vendor fix available · Affected: Go standard library encoding/xml · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 47% of scored CVEs
DescriptionCVE.org
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Go standard library · encoding/xmlbefore 1.25.13; from 1.26.0-0 before 1.26.6; from 1.27.0-0 before 1.27.0-rc.3
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Go standard library
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-56859 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.