CVE•Published 2026-05-22•Modified 2026-08-11•1 article on news•4 live references•NVD data
CVE-2026-39833Golang · Crypto
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
34
Exploit Prediction Scoring System · top 66% of all CVEs
Weaknesses (CWE)
Description
The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested.
Timeline
Published 2026-05-22
Modified 2026-08-11
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-39833Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Golang Crypto"All exposed Golang Crypto instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Crypto"HTTP body or banner mentions "Crypto" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-39833Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-39833Censys host search filtered to this CVE id.
grep.app
CVE-2026-39833Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-39833GitHub code search for direct mentions.
Google dork
"CVE-2026-39833" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.