CVE•Published 2026-07-03•Modified 2026-07-07•1 article on news•6 live references•NVD data
CVE-2026-20896
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
52
Exploit Prediction Scoring System · top 48% of all CVEs
Weaknesses (CWE)
Description
Gitea Docker image versions up to and including 1.26.2 use REVERSE_PROXY_TRUSTED_PROXIES=* by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled.
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-2026-20896Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-20896Censys host search filtered to this CVE id.
grep.app
CVE-2026-20896Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-20896GitHub code search for direct mentions.
Google dork
"CVE-2026-20896" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-20896 on GitHub.