CVE-2026-61435
CVE-2026-61435 · PraisonAI before 4.6.78 Authentication Bypass via Host Header Spoofing
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
PraisonAI before 4.6.78 contains an authentication bypass in the Call API agent invocation endpoints (src/praisonai/praisonai/api/agent_invoke.py) when PRAISONAI_CALL_AUTH=disabled is configured. The safeguard intended to restrict the disabled-auth opt-out to localhost binding derives the bind host from request.url.hostname, which is taken from the client-controlled HTTP Host header. A remote, unauthenticated attacker who can reach the service over the network can send a spoofed 'Host: 127.0.0.1' header to bypass the localhost-only restriction and list (GET /api/v1/agents) and invoke (POST /api/v1/agents/{agent_id}/invoke) registered agents without authentication.
CVSS 8.8 · High · EPSS 0.5% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
praisonai
- Versions
- ≥ 0, < 4.6.78: Affected (semver)
- 4.6.78: Not affected (semver)
Update to 4.6.78
praisonai PyPI
- Versions
- 0.0.1
- 0.0.10
- 0.0.11
- 0.0.12
- 0.0.13
- 0.0.14
- 0.0.15
- 0.0.16
- 0.0.17
- 0.0.18
- 0.0.19
- 0.0.2
- 0.0.20
- 0.0.21
- 0.0.22
- 0.0.23
- 0.0.24
- 0.0.25
- 0.0.26
- 0.0.27
- 0.0.28
- 0.0.29
- 0.0.3
- 0.0.30
- 0.0.31
- 0.0.32
- 0.0.33
- 0.0.34
- 0.0.35
- 0.0.36
- 0.0.37
- 0.0.38
- 0.0.39
- 0.0.4
- 0.0.40
- 0.0.41
- 0.0.42
- 0.0.43
- 0.0.44
- 0.0.45
- 0.0.46
- 0.0.47
- 0.0.48
- 0.0.49
- 0.0.5
- 0.0.50
- 0.0.52
- 0.0.53
- 0.0.54
- 0.0.55
- 0.0.56
- 0.0.57
- 0.0.58
- 0.0.59
- 0.0.59rc11
- 0.0.59rc2
- 0.0.59rc3
- 0.0.59rc5
- 0.0.59rc6
- 0.0.59rc7
- 0.0.59rc8
- 0.0.59rc9
- 0.0.6
- 0.0.61
- 0.0.64
- 0.0.65
- 0.0.66
- 0.0.67
- 0.0.68
- 0.0.69
- 0.0.7
- 0.0.70
- 0.0.71
- 0.0.72
- 0.0.73
- 0.0.74
- 0.0.8
- 0.0.9
- 0.1.0
- 0.1.1
- 0.1.10
- 0.1.2
- 0.1.3
- 0.1.4
- 0.1.5
- 0.1.6
- 0.1.7
- 0.1.8
- 0.1.9
- 1.0.0
- 1.0.1
- 1.0.10
- 1.0.11
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.8
- 1.0.9
- 2.0.0
- 2.0.1
- 2.0.10
- 2.0.11
- 2.0.12
- 2.0.13
- 2.0.14
- 2.0.15
- 2.0.16
- 2.0.17
- 2.0.18
- 2.0.19
- 2.0.2
- 2.0.20
- 2.0.22
- 2.0.23
- 2.0.24
- 2.0.25
- 2.0.26
- 2.0.27
- 2.0.28
- 2.0.29
- 2.0.3
- 2.0.30
- 2.0.31
- 2.0.32
- 2.0.33
- 2.0.34
- 2.0.35
- 2.0.36
- 2.0.37
- 2.0.38
- 2.0.39
- 2.0.40
- 2.0.41
- 2.0.42
- 2.0.43
- 2.0.44
- 2.0.45
- 2.0.46
- 2.0.47
- 2.0.48
- 2.0.49
- 2.0.5
- 2.0.50
- 2.0.51
- 2.0.53
- 2.0.54
- 2.0.55
- 2.0.56
- 2.0.57
- 2.0.58
- 2.0.59
- 2.0.6
- 2.0.60
- 2.0.61
- 2.0.62
- 2.0.63
- 2.0.64
- 2.0.65
- 2.0.66
- 2.0.67
- 2.0.68
- 2.0.69
- 2.0.7
- 2.0.70
- 2.0.71
- 2.0.72
- 2.0.73
- 2.0.74
- 2.0.75
- 2.0.76
- 2.0.77
- 2.0.78
- 2.0.79
- 2.0.8
- 2.0.80
- 2.0.81
- 2.0.9
- 2.1.0
- 2.1.1
- 2.1.4
- 2.1.5
- 2.1.6
- 2.2.1
- 2.2.10
- 2.2.11
- 2.2.12
- 2.2.13
- 2.2.14
- 2.2.15
- 2.2.16
- 2.2.17
- 2.2.18
- 2.2.19
- 2.2.2
- 2.2.20
- 2.2.21
- 2.2.22
- 2.2.24
- 2.2.25
- 2.2.26
- 2.2.27
- 2.2.28
- 2.2.29
- 2.2.3
- 2.2.30
- 2.2.31
- 2.2.32
- 2.2.33
- 2.2.34
- 2.2.35
- 2.2.36
- 2.2.37
- 2.2.38
- 2.2.39
- 2.2.4
- 2.2.40
- 2.2.41
- 2.2.42
- 2.2.43
- 2.2.44
- 2.2.45
- 2.2.46
- 2.2.47
- 2.2.48
- 2.2.49
- 2.2.5
- 2.2.50
- 2.2.51
- 2.2.52
- 2.2.53
- 2.2.54
- 2.2.55
- 2.2.56
- 2.2.57
- 2.2.58
- 2.2.59
- 2.2.6
- 2.2.60
- 2.2.61
- 2.2.62
- 2.2.63
- 2.2.64
- 2.2.65
- 2.2.66
- 2.2.67
- 2.2.68
- 2.2.69
- 2.2.7
- 2.2.70
- 2.2.71
- 2.2.72
- 2.2.73
- 2.2.74
- 2.2.75
- 2.2.76
- 2.2.77
- 2.2.78
- 2.2.79
- 2.2.8
- 2.2.80
- 2.2.81
- 2.2.82
- 2.2.83
- 2.2.84
- 2.2.86
- 2.2.87
- 2.2.88
- 2.2.89
- 2.2.9
- 2.2.90
- 2.2.91
- 2.2.93
- 2.2.95
- 2.2.96
- 2.2.97
- 2.2.98
- 2.2.99
- 2.3.0
- 2.3.1
- 2.3.10
- 2.3.11
- 2.3.12
- 2.3.13
- 2.3.14
- 2.3.15
- 2.3.16
- 2.3.18
- 2.3.19
- 2.3.2
- 2.3.20
- 2.3.21
- 2.3.22
- 2.3.23
- 2.3.24
- 2.3.25
- 2.3.26
- 2.3.27
- 2.3.28
- 2.3.29
- 2.3.3
- 2.3.30
- 2.3.31
- 2.3.32
- 2.3.33
- 2.3.34
- 2.3.35
- 2.3.36
- 2.3.37
- 2.3.38
- 2.3.39
- 2.3.4
- 2.3.40
- 2.3.41
- 2.3.42
- 2.3.43
- 2.3.44
- 2.3.45
- 2.3.46
- 2.3.47
- 2.3.48
- 2.3.49
- 2.3.5
- 2.3.50
- 2.3.51
- 2.3.52
- 2.3.53
- 2.3.54
- 2.3.55
- 2.3.56
- 2.3.57
- 2.3.58
- 2.3.59
- 2.3.6
- 2.3.60
- 2.3.61
- 2.3.62
- 2.3.63
- 2.3.64
- 2.3.65
- 2.3.66
- 2.3.67
- 2.3.68
- 2.3.69
- 2.3.7
- 2.3.70
- 2.3.71
- 2.3.72
- 2.3.73
- 2.3.74
- 2.3.75
- 2.3.76
- 2.3.77
- 2.3.78
- 2.3.79
- 2.3.8
- 2.3.80
- 2.3.81
- 2.3.82
- 2.3.83
- 2.3.84
- 2.3.85
- 2.3.86
- 2.3.87
- 2.3.9
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.5.0
- 2.5.1
- 2.5.2
- 2.5.3
- 2.5.4
- 2.5.5
- 2.5.6
- 2.5.7
- 2.6.0
- 2.6.1
- 2.6.2
- 2.6.3
- 2.6.4
- 2.6.5
- 2.6.6
- 2.6.7
- 2.6.8
- 2.7.0
- 2.8.3
- 2.8.4
- 2.8.5
- 2.8.6
- 2.8.7
- 2.8.8
- 2.8.9
- 2.9.0
- 2.9.1
- 2.9.2
- 3.0.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.10.0
- 3.10.1
- 3.10.10
- 3.10.11
- 3.10.12
- 3.10.13
- 3.10.14
- 3.10.15
- 3.10.16
- 3.10.17
- 3.10.18
- 3.10.19
- 3.10.2
- 3.10.20
- 3.10.21
- 3.10.22
- 3.10.23
- 3.10.24
- 3.10.25
- 3.10.26
- 3.10.27
- 3.10.3
- 3.10.4
- 3.10.5
- 3.10.6
- 3.10.7
- 3.10.8
- 3.10.9
- 3.11.0
- 3.11.1
- 3.11.10
- 3.11.11
- 3.11.12
- 3.11.13
- 3.11.14
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.8
- 3.11.9
- 3.12.0
- 3.12.1
- 3.12.2
- 3.12.3
- 3.2.0
- 3.2.1
- 3.3.0
- 3.3.1
- 3.4.0
- 3.4.1
- 3.5.0
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.5.5
- 3.5.6
- 3.5.7
- 3.5.8
- 3.5.9
- 3.6.0
- 3.6.1
- 3.6.2
- 3.7.0
- 3.7.1
- 3.7.2
- 3.7.3
- 3.7.4
- 3.7.5
- 3.7.6
- 3.7.7
- 3.7.8
- 3.7.9
- 3.8.0
- 3.8.1
- 3.8.10
- 3.8.11
- 3.8.12
- 3.8.13
- 3.8.14
- 3.8.16
- 3.8.17
- 3.8.18
- 3.8.19
- 3.8.2
- 3.8.20
- 3.8.21
- 3.8.22
- 3.8.3
- 3.8.4
- 3.8.5
- 3.8.6
- 3.8.7
- 3.8.8
- 3.8.9
- 3.9.0
- 3.9.1
- 3.9.10
- 3.9.11
- 3.9.12
- 3.9.13
- 3.9.14
- 3.9.15
- 3.9.16
- 3.9.17
- 3.9.18
Update to 4.6.78
Original sources
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2gpf-2492-q9jh
- https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33
- https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753
- https://www.vulncheck.com/advisories/praisonai-before-authentication-bypass-via-host-header-spoofing
- https://nvd.nist.gov/vuln/detail/CVE-2026-61435