CVE•Published 2026-08-11•Modified 2026-09-25•1 article on news•5 live references•NVD data
CVE-2026-15556
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
15
Exploit Prediction Scoring System · top 85% of all CVEs
Weaknesses (CWE)
Description
A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protected application.
Timeline
Published 2026-08-11
Modified 2026-09-25
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). Live host counts are a Premium feature.
More intel sources (5)
Shodan report
vuln:CVE-2026-15556Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-15556Censys host search filtered to this CVE id.
grep.app
CVE-2026-15556Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-15556GitHub code search for direct mentions.
Google dork
"CVE-2026-15556" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (3)
CVE-2026-155563 repos
cnlinxi/LLM-paper-dailyPython
Automatically Update LLM Papers Daily using Github Actions. Ref: https://github.com/Vincentqyw/cv-arxiv-daily
renat0z3r0/notepadpp-supply-chain-iocsunknown
IoCs and detection rules for the Notepad++ supply chain attack (CVE-2025-15556) — Lotus Blossom APT, June–December 2025. Includes Falcon LogScale queries, YARA/Sigma rules, and MIT…
cmivqa/ro-arxiv-dailyPython
Automatically Update Arxiv Papers Daily using Github Actions (Update Every 8th hours)