Lemmy

United States Open Source join-lemmy.org ↗
C
CAUTION
6
Total CVEs
1
Crit / High
4
Medium
0%
Unpatched
0%
Patched
6.2
Avg CVSS
0
CISA KEV
// Data sourced from NVD · CISA KEV · RHSA · GHSA · Debian · OSV · EPSS · Exploit-DB How we collect data →
// INTEL UPGRADE
Full Company Dossier — Coming Soon
Executive profiles, financial exposure, M&A risk, breach history & supply-chain threat mapping — all in one place.
OSINT FINANCIALS EXEC PROFILES BREACH DB
▸ CVE Trend by Year
▸ Patch Coverage
Patched
0%
Unpatched
0%
Under Review
100%
✓ 0 patched ✗ 0 unpatched ~ 5 under review
▸ Intelligence by Audience
PoC Available
1 / 20 shown
CISA KEV (Exploited)
0
Shodan Dorks
ssl:"lemmy" port:443
org:"Lemmy" http.status:200
Top EPSS (Exploitation Probability)
CVE-2026-54743 0.55% exploitation probability
CVE-2026-54742 0.52% exploitation probability
CVE-2026-54741 0.45% exploitation probability
CVE-2026-54738 0.43% exploitation probability
CVE-2026-54740 0.37% exploitation probability
Quick Facts for Reporting
Total CVEs tracked
6
Critical severity
0
Actively exploited (CISA)
0
Unpatched ratio
0%
Avg CVSS score
6.2
Security grade
C (CAUTION)
NVD Data Attribution
Source: NIST National Vulnerability Database (NVD) + GitHub Advisory Database.
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-07-07
Security Risk Score (for investors)
LOW
Vuln Volume
GOOD
Patch Responsiveness
LOW
CISA Exposure
⚠ Not financial advice. Past security incidents do not guarantee future stock performance.
▸ Security News Google News

No recent security news found for Lemmy.

▸ Recent CVEs showing 20 of 5
CVE IDSeverityPatchEPSSDate
CVE-2026-54741 4.3 MEDIUM PATCH UNDER REVIEW 0.45% 2026-08-19
CVE-2026-54742 ? N/A PATCH UNDER REVIEW 0.52% 2026-08-19
CVE-2026-54743 PoC 8.2 HIGH PATCH UNDER REVIEW 0.55% 2026-08-19
CVE-2026-54740 6.5 MEDIUM PATCH UNDER REVIEW 0.37% 2026-08-19
CVE-2026-54738 6.5 MEDIUM PATCH UNDER REVIEW 0.43% 2026-08-19
View all 5 CVEs for Lemmy →
▸Intel
Founded2019
CountryUnited States
LicenseOpen Source
Trust ScoreC — CAUTION
Max CVSS7.5
Last Updated2026-07-07
▸Top Weaknesses
CWE-918
Server-Side Request Forgery (SSRF)
5 occurrences in Lemmy CVEs (83% of total)
CWE-918 ⓘ
5
CWE-639
Unknown Weakness Type
1 occurrence in Lemmy CVEs (17% of total)
CWE-639 ⓘ
1
▸Company Profile

Lemmy is an open-source, self-hosted social news aggregation and discussion platform, similar to Reddit, that allows users to create and manage their own communities. It is built on the ActivityPub protocol, enabling federation with other platforms like Mastodon, and is significant in cybersecurity as a decentralized alternative that raises unique considerations for content moderation, data privacy, and server security. The project is maintained by a community of volunteers and has a small number of tracked CVEs, reflecting its niche but growing adoption.

▸Response Metrics
Est. MTTR ⓘ ~500 days (Critical)
Mean Time To Remediate. Estimates days from CVE disclosure to patch.
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
CVE Trend ⓘ ↗ +300% worse
CVE count 2026 vs 2025:  1 → 4 CVEs
Patch Speed ⓘ Poor (>65% open)
0% of CVEs still unpatched.  Excellent: <20% · Good: 20-40% · Avg: 40-65% · Poor: >65%
▸ Financial Risk Estimate
Est. GDPR Low
€600K
Est. GDPR High
€6.0M

Based on 0 critical CVEs, 0 CISA KEV, 100% unpatched. Model: GDPR Art.83 · not legal advice.

▸Actions
⚖ Compare with another vendor
▸Embed Badge
Lemmy C valtersit.com