CVE•Published 2026-05-11•Modified 2026-05-12•1 article on news•5 live references•NVD data
CVE-2026-43886
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
EPSS percentile
—
Weaknesses (CWE)
Description
Outline is a service that allows for collaborative documentation. From 0.84.0 to 1.6.1, a logic error in OAuthInterface.validateScope() uses Array.some() to validate requested OAuth scopes, causing the function to accept the entire scope array if any single scope is valid. An attacker can smuggle the wildcard * scope by requesting scope=read *, escalating a read-only OAuth token to full unrestricted API access including write, delete, and admin operations. This vulnerability is fixed in 1.7.0.
Timeline
Published 2026-05-11
Modified 2026-05-12
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-43886Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-43886Censys host search filtered to this CVE id.
grep.app
CVE-2026-43886Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-43886GitHub code search for direct mentions.
Google dork
"CVE-2026-43886" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-43886 on GitHub.