Mastodon
C
CAUTION
27
Total CVEs
3
Crit / High
15
Medium
0%
Unpatched
52%
Patched
5.5
Avg CVSS
0
CISA KEV
// Data sourced from NVD · CISA KEV · RHSA · GHSA · Debian · OSV · EPSS · Exploit-DB
How we collect data →
CVE Trend by Year
Patch Coverage
✓ 13 patched ✗ 0 unpatched ~ 11 under review ⏳ 1 pending score
Intelligence by Audience
PoC Available
1 / 20 shown
CISA KEV (Exploited)
0
Shodan Dorks
ssl:"mastodon" port:443
org:"Mastodon" http.status:200
Top EPSS (Exploitation Probability)
Quick Facts for Reporting
Total CVEs tracked
27
Critical severity
1
Actively exploited (CISA)
0
Unpatched ratio
0%
Avg CVSS score
5.5
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: 2026-07-08
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-07-08
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
Recent CVEs
showing 20 of 25
| CVE ID | Severity | Patch | EPSS | Date |
|---|---|---|---|---|
| CVE-2026-59825 | 7.4 HIGH | PATCH UNDER REVIEW | 0.35% | 2026-08-18 |
| CVE-2026-72915 | 7.5 HIGH | PATCH UNDER REVIEW | 0.28% | 2026-08-10 |
| CVE-2026-72916 | ? N/A | PATCH UNDER REVIEW | 0.36% | 2026-08-10 |
| CVE-2026-72914 | 7.5 HIGH | PATCH UNDER REVIEW | 0.45% | 2026-08-10 |
| CVE-2025-67500 | 3.7 LOW | PATCHED / FIX AVAILABLE | 0.22% | 2025-12-09 |
| CVE-2025-62605 | 4.3 MEDIUM | PATCHED / FIX AVAILABLE | 0.28% | 2025-10-21 |
| CVE-2025-62176 | 4.3 MEDIUM | PATCHED / FIX AVAILABLE | 0.27% | 2025-10-13 |
| CVE-2025-62175 | 4.3 MEDIUM | PATCHED / FIX AVAILABLE | 0.23% | 2025-10-13 |
| CVE-2025-62174 | 3.5 LOW | PATCHED / FIX AVAILABLE | 0.21% | 2025-10-13 |
| CVE-2025-54879 | 5.3 MEDIUM | PATCHED / FIX AVAILABLE | 0.54% | 2025-08-05 |
| CVE-2025-27399 | 5.3 MEDIUM | PATCHED / FIX AVAILABLE | 0.36% | 2025-02-27 |
| CVE-2025-27157 | 5.3 MEDIUM | PATCHED / FIX AVAILABLE | 0.37% | 2025-02-27 |
| CVE-2023-49952 | ? N/A | PATCH UNDER REVIEW | 0.47% | 2024-11-18 |
| CVE-2024-34535 PoC | ? N/A | UNKNOWN / UNPATCHED | 0.07% | 2024-10-03 |
| CVE-2024-37903 | 8.2 HIGH | PATCHED / FIX AVAILABLE | 0.53% | 2024-07-05 |
| CVE-2024-25623 | 8.5 HIGH | PATCH UNDER REVIEW | 0.51% | 2024-02-19 |
| CVE-2024-25619 | 3.1 LOW | PATCHED / FIX AVAILABLE | 0.36% | 2024-02-14 |
| CVE-2024-25618 | 4.2 MEDIUM | PATCHED / FIX AVAILABLE | 0.47% | 2024-02-14 |
| CVE-2024-23832 | 9.4 CRITICAL | PATCH UNDER REVIEW | 2.45% | 2024-02-01 |
| CVE-2023-42451 | 7.4 HIGH | PATCHED / FIX AVAILABLE | 0.57% | 2023-09-19 |
Intel
Founded2016
CountryGermany
LicenseOpen Source
Trust ScoreC — CAUTION
Max CVSS9.4
Last Updated2026-07-08
Top Weaknesses
CWE-918
Server-Side Request Forgery (SSRF)
3 occurrences in Mastodon CVEs
(11% of total)
CWE-770
Unknown Weakness Type
3 occurrences in Mastodon CVEs
(11% of total)
CWE-639
Unknown Weakness Type
2 occurrences in Mastodon CVEs
(7% of total)
CWE-346
Unknown Weakness Type
2 occurrences in Mastodon CVEs
(7% of total)
CWE-862 (Missing Authorization)
Unknown Weakness Type
2 occurrences in Mastodon CVEs
(7% of total)
CWE-613
Unknown Weakness Type
2 occurrences in Mastodon CVEs
(7% of total)
CWE-770 (Allocation of Resources Without Limits or Throttling)
Unknown Weakness Type
2 occurrences in Mastodon CVEs
(7% of total)
CWE-280
Unknown Weakness Type
1 occurrence in Mastodon CVEs
(4% of total)
Company Profile
Mastodon is a decentralized, open-source social networking platform that operates as a federated alternative to mainstream services like Twitter/X. It is built on the ActivityPub protocol, allowing independent instances to interoperate, which introduces unique cybersecurity considerations around data sovereignty, content moderation, and instance-level security. Mastodon's significance lies in its growing adoption for privacy-conscious and community-driven social media, with vulnerabilities tracked in its web application and API.
Response Metrics
Est. MTTR ⓘ
~88 days
(Average)
Mean Time To Remediate. Estimates days from CVE disclosure to patch.
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
CVE Trend ⓘ ↗ +100% worse
CVE count 2026 vs 2025:
7 → 14 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
€588K
Est. GDPR High
€5.9M
Based on 1 critical CVEs, 0 CISA KEV, 96% unpatched. Model: GDPR Art.83 · not legal advice.
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