CVE-2026-45078
2 advisories.
PyPI/matrix-synapse CVE-2026-45078: medium 5.5, EPSS 0.13%
Synapse CPU starvation (Denial of Service)
Action: Upgrade matrix-synapse to 1.152.1 or later.
pip install matrix-synapse==1.152.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.152.1 | - |
Fixed versions
| 1.152.1 |
Sources
- osv: GHSA-8q93-326v-3m7g
- https://github.com/element-hq/synapse/security/advisories/GHSA-8q93-326v-3m7g
- https://nvd.nist.gov/vuln/detail/CVE-2026-45078
- https://github.com/element-hq/synapse/issues/19394
- https://github.com/element-hq/synapse/commit/3f58bc50dfba5768ee43ce48c5e74c25ba0b078a
- https://github.com/element-hq/synapse
- https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2026-191.yaml
CVE-2026-45078 · published · modified · JSON
PyPI/matrix-synapse CVE-2026-45078: medium 5.5, EPSS 0.13%
Synapse is an open source Matrix homeserver implementation. Prior to 1.152.1, local authenticated users can cause Synapse to starve other requests of CPU and lead to other requests failing, causing ot
Action: Upgrade matrix-synapse to 1.152.1 or later.
pip install matrix-synapse==1.152.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.152.1 | - |
Fixed versions
| 1.152.1 |
Sources
CVE-2026-45078 · published · modified · JSON