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Matrix.org
Synapse
Known Vulnerabilities in Synapse
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2.20.15.1104
1.127.1
1.127.0
1.126.0
1.125.0
1.124.0
1.123.0
1.122.0
1.121.1
1.121.0
1.120.2
1.120.1
1.120.0
1.119.0
1.118.0
1.117.0
1.116.0
1.115.0
1.114.0
1.113.0
1.112.0
1.111.1
1.111.0
1.110.0
1.109.0
1.108.0
1.107.0
1.106.0
1.105.1
1.105.0
1.104.0
1.103.0
1.102.0
1.101.0
1.100.0
1.99.0
1.98.0
1.97.0
1.96.1
1.96.0
1.95.1
1.95.0
1.94.0
1.93.0
1.92.3
1.92.2
1.92.1
1.92.0
1.91.2
1.91.1
1.91.0
1.90.0
1.89.0
1.88.0
1.87.0
1.86.0
1.85.2
1.85.1
1.85.0
1.84.1
1.84.0
1.83.0
1.82.0
1.81.0
1.80.0
1.79.0
1.78.0
1.77.0
1.76.0
1.75.0
1.74.0
1.73.0
1.72.0
1.71.0
1.70.1
1.70.0
1.69.0
1.68.0
1.67.0
1.66.0
1.65.0
1.64.0
1.63.1
1.63.0
1.62.0
1.61.1
1.61.0
1.60.0
1.59.1
1.59.0
1.58.1
1.58.0
1.57.1
1.57.0
1.56.0
1.55.2
1.55.1
1.55.0
1.54.0
1.53.0
1.52.0
1.51.0
1.50.2
1.50.1
1.50.0
1.49.2
1.49.1
1.49.0
1.48.0
1.47.1
1.47.0
1.46.0
1.45.1
1.45.0
1.44.0
1.43.0
1.42.0
1.42.0rc1
1.41.1
1.41.0
1.40.0
1.39.0
1.38.1
1.38.0
1.37.1
1.37.0
1.36.0
1.35.1
1.35.0
1.34.0
1.33.2
1.33.1
1.33.0
1.32.2
1.32.1
1.32.0
1.31.0
1.30.1
1.30.0
1.29.0
1.28.0
1.27.0
1.26.0
1.25.0
1.24.0
1.23.1
1.23.0
1.22.1
1.22.0
1.21.2
1.21.1
1.21.0
1.20.1
1.20.0
1.19.3
1.19.2
1.19.1
1.19.0
1.18.0
1.17.0
1.16.1
1.16.0
1.15.2
1.15.1
1.15.0
1.14.0
1.13.0
1.12.4
1.12.3
1.12.2
1.12.1
1.12.0
1.11.1
1.11.0
1.10.1
1.10.0
1.9.1
1.9.0
1.8.0
1.7.3
1.7.2
1.7.1
1.7.0
1.6.1
1.6.0
1.5.1
1.5.0
1.5.0rc2
1.5.0rc1
1.4.1
1.4.0
1.3.2
1.3.1
1.3.0
1.2.1.2
1.2.1.1
1.2.1
1.2.0.2
1.2.0.1
1.2.0
1.1.1.7
1.1.1.6
1.1.1
1.1.0
1.0.0
0.99.5.2
0.99.5.1
0.99.5.1.
0.99.5
0.99.4
0.99.3.2
0.99.3.1
0.99.3
0.99.2
0.99.1.1
0.99.1
0.99.0
0.34.1.1
0.34.1
0.34.0.1
0.34.0
0.33.9
0.33.8
0.33.7
0.33.6
0.33.5.1
0.33.5
0.33.4
0.33.3.1
0.33.3
0.33.2.1
0.33.2
0.33.1
0.33.0
0.32.2
0.32.1
0.32.0
0.31.2
0.31.1
0.31.0
0.30.0
0.29.1
0.29.0
0.28.1
0.28.0
0.27.4
0.27.3
0.27.2
0.27.1
0.27.0
0.26.1
0.26.0
0.25.1
0.25.0
0.24.1
0.24.0
0.23.1
0.23.0
0.22.1
0.22.0
0.21.1
0.21.0
0.20.0
0.19.3
0.19.2
0.19.1
0.19.0
0.18.7
0.18.6
0.18.5
0.18.4
0.18.3
0.18.2
0.18.1
0.18.0
0.17.3
0.17.2
0.17.1
0.17.0
0.16.1
0.16.0
0.15.0
0.14.0
0.13.3
0.13.2
0.13.1
0.13.0
0.12.1
0.12.0
0.11.1
0.11.0
0.10.1
0.10.0
0.9.4
0.9.3
0.9.2
0.9.1
0.9.0
0.8.1
0.8.0
0.7.1
0.7.0
0.6.1
0.6.0
0.5.4
0.5.3
0.5.2
0.5.1
0.5.0
0.4.2
0.4.1
0.3.4
0.3.3
0.3.2
0.3.1
0.3.0
0.2.3
0.2.2
0.2.1
0.2.0
0.1.2
0.1.1
0.1.0
0.1
0.0.1
0.0.0
Remote denial of service in Matrix Synapse
31 Mar, 2025
High
Patched
Zero Day
Multiple vulnerabilities in Matrix Synapse
04 Oct, 2023
Low
Patched
Heap-based buffer overflow in Matrix Synapse
19 Sep, 2023
Critical
Patched
Exploited
Matrix Synapse update for libwebp
18 Sep, 2023
Critical
Patched
Exploited
Information disclosure in Synapse Matrix
20 Aug, 2023
Low
Patched
Multiple vulnerabilities in Matrix Synapse
07 Jun, 2023
Medium
Patched
Denial of service in Matrix Synapse
22 May, 2023
Medium
Patched
Denial of service in Matrix Synapse
22 May, 2023
Medium
Patched
Denial of service in Matrix Synapse
17 May, 2023
Medium
Patched
Path traversal in Synapse
24 Nov, 2021
Medium
Patched
Multiple vulnerabilities in Matrix Synapse
01 Sep, 2021
Low
Patched
Denial of service in Synapse
12 May, 2021
Low
Patched
Multiple vulnerabilities in Matrix Synapse
01 Mar, 2021
Medium
Patched
Denial of service in Matrix Synapse
27 Nov, 2020
Medium
Patched
Multiple vulnerabilities in Twisted Web component in Synapse
24 Mar, 2020
Medium
Patched
Improper authorization in Synapse
19 Dec, 2019
Low
Patched
Authentication bypass in Synapse
29 Nov, 2019
Medium
Patched
Insufficient verification of data authenticity in matrix-synapse package
13 Nov, 2019
High
Patched
Weak pseudo-random number generator in Matrix Sydent and Synapse
09 May, 2019
Medium
Patched
Predictable secret key in Matrix Synapse
21 Mar, 2019
Medium
Patched
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