CVE•Published 2026-07-03•Modified 2026-07-07•1 article on news•4 live references•NVD data
CVE-2026-26247
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
6
Exploit Prediction Scoring System · top 94% of all CVEs
Weaknesses (CWE)
Description
Gitea versions before 1.25.5 do not persist the OAuth2 PKCE S256 challenge method correctly during authorization, allowing token exchange without the expected verifier check.
Timeline
Published 2026-07-03
Modified 2026-07-07
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-2026-26247Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-26247Censys host search filtered to this CVE id.
grep.app
CVE-2026-26247Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-26247GitHub code search for direct mentions.
Google dork
"CVE-2026-26247" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.