VDB
CVE-2026-77528
CVE-2026-77528
PUBLISHED
CVSS 5.300000190734863 MEDIUM
Autobahn Python permessage-deflate bypasses maxMessagePayloadSize after inflation
EPSS 0.52% · 44.4th percentile
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score
0.52%
44.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| chainguard | awx | 0 |
| PyPI | crossbar | 0 |
| crossbario | autobahn-python | 0 |
| PyPI | autobahn | 0 |
Timeline
- Sep 18, 2026 Coalition ESS Score
- Sep 18, 2026 CVE Published
- Sep 19, 2026 EPSS Score
- Sep 23, 2026 CVE Updated
- Sep 24, 2026 EPSS Score
- Sep 26, 2026 EPSS Score
- Sep 30, 2026 EPSS Score
- Oct 2, 2026 EPSS Score
- Oct 6, 2026 EPSS Score
- Oct 8, 2026 EPSS Score
- Oct 11, 2026 EPSS Score
- Oct 13, 2026 EPSS Score
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-77528 advisory
- https://github.com/advisories/GHSA-hxp9-w8x3-p566 advisory
- https://github.com/crossbario/autobahn-python/security/advisories/GHSA-hxp9-w8x3-p566 url
- https://github.com/crossbario/autobahn-python/pull/1916 patch
- https://github.com/crossbario/autobahn-python/commit/77d323a30b09b1828ad8be2ce6344e056970e613 patch
- https://github.com/crossbario/autobahn-python/releases/tag/v26_7_1 url