PYSEC-2026-1877
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/ryu/PYSEC-2026-1877.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-1877
- Aliases
- Published
- 2026-07-07T11:45:41.627672Z
- Modified
- 2026-07-07T17:46:36.805505667Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Ryu Infinite Loop vulnerability
- Details
-
OFPHelloin parser.py in Faucet SDN Ryu 4.34 allows attackers to cause a denial of service (infinite loop) vialength=0. - References
Affected packages
PyPI / ryu
Package
- Name
- ryu
- View open source insights on deps.dev
- Purl
- pkg:pypi/ryu
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedLast affected4.34
Affected versions
0.*
0.2
1.*
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.*
2.0
2.1
2.2
3.*
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.15
3.17
3.18
3.19
3.20
3.20.1
3.20.2
3.22
3.23
3.23.1
3.23.2
3.24
3.25
3.25.1
3.26
3.29
3.29.1
3.30
4.*
4.0
4.1
4.2
4.2.1
4.2.2
4.3
4.4
4.5
4.6
4.7
4.8
4.8.1
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
4.17
4.18
4.19
4.20
4.21
4.22
4.23
4.24
4.25
4.26
4.27
4.29
4.30
4.31
4.32
4.33
4.34