CVE-2026-27637

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Source

https://cve.org/CVERecord?id=CVE-2026-27637

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27637.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-27637

Related

GHSA-6gcm-v8xf-j9v9
GHSA-mw88-x7j3-74vc

Published

2026-02-25T03:41:23.478Z

Modified

2026-03-03T02:56:39.346707Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

FreeScout's Predictable Authentication Token Enables Account Takeover

Details

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's TokenAuth middleware uses a predictable authentication token computed as MD5(user_id + created_at + APP_KEY). This token is static (never expires/rotates), and if an attacker obtains the APP_KEY — a well-documented and common exposure vector in Laravel applications — they can compute a valid token for any user, including the administrator, achieving full account takeover without any password. This vulnerability can be exploited on its own or in combination with CVE-2026-27636. Version 1.8.206 fixes both vulnerabilities.

Database specific

{
    "cwe_ids": [
        "CWE-330"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27637.json"
}

References

Affected packages

Git / github.com/freescout-help-desk/freescout

Affected ranges

Type: GIT
Repo: https://github.com/freescout-help-desk/freescout
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

63b225e380ffa4dc9a4816a18a53d46b69650ac0

Affected versions

1.*

1.0.0

1.0.2

1.0.3

1.0.4

1.0.5

1.0.6

1.0.7

1.0.8

1.0.9

1.1.0

1.1.1

1.1.10

1.1.2

1.1.3

1.1.4

1.1.5

1.1.6

1.1.7

1.1.8

1.1.9

1.2.0

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.2.6

1.3.0

1.3.1

1.3.10

1.3.11

1.3.12

1.3.13

1.3.14

1.3.15

1.3.16

1.3.17

1.3.18

1.3.19

1.3.2

1.3.3

1.3.4

1.3.5

1.3.6

1.3.7

1.3.8

1.3.9

1.4.0

1.4.1

1.4.10

1.4.11

1.4.12

1.4.2

1.4.3

1.4.4

1.4.6

1.4.7

1.4.8

1.4.9

1.5.0

1.5.1

1.5.10

1.5.11

1.5.12

1.5.13

1.5.14

1.5.15

1.5.2

1.5.3

1.5.4

1.5.5

1.5.6

1.5.7

1.5.8

1.5.9

1.6.0

1.6.1

1.6.10

1.6.11

1.6.12

1.6.13

1.6.14

1.6.15

1.6.16

1.6.17

1.6.18

1.6.19

1.6.2

1.6.20

1.6.3

1.6.4

1.6.5

1.6.6

1.6.7

1.6.8

1.6.9

1.7.0

1.7.1

1.7.10

1.7.11

1.7.12

1.7.13

1.7.14

1.7.15

1.7.16

1.7.17

1.7.18

1.7.19

1.7.2

1.7.20

1.7.21

1.7.22

1.7.23

1.7.24

1.7.25

1.7.26

1.7.27

1.7.28

1.7.29

1.7.3

1.7.30

1.7.4

1.7.5

1.7.6

1.7.7

1.7.9

1.8.0

1.8.1

1.8.10

1.8.100

1.8.101

1.8.102

1.8.103

1.8.104

1.8.105

1.8.106

1.8.107

1.8.108

1.8.109

1.8.11

1.8.110

1.8.111

1.8.112

1.8.113

1.8.114

1.8.115

1.8.116

1.8.117

1.8.118

1.8.119

1.8.12

1.8.120

1.8.121

1.8.122

1.8.123

1.8.124

1.8.125

1.8.126

1.8.127

1.8.128

1.8.129

1.8.13

1.8.130

1.8.131

1.8.132

1.8.133

1.8.134

1.8.135

1.8.136

1.8.137

1.8.138

1.8.139

1.8.14

1.8.140

1.8.141

1.8.142

1.8.143

1.8.144

1.8.145

1.8.146

1.8.147

1.8.148

1.8.149

1.8.15

1.8.150

1.8.151

1.8.152

1.8.153

1.8.154

1.8.155

1.8.156

1.8.157

1.8.158

1.8.159

1.8.16

1.8.160

1.8.161

1.8.162

1.8.163

1.8.164

1.8.165

1.8.166

1.8.167

1.8.168

1.8.169

1.8.17

1.8.170

1.8.171

1.8.172

1.8.173

1.8.174

1.8.175

1.8.176

1.8.177

1.8.178

1.8.179

1.8.18

1.8.180

1.8.181

1.8.182

1.8.183

1.8.184

1.8.185

1.8.186

1.8.187

1.8.188

1.8.189

1.8.19

1.8.190

1.8.191

1.8.192

1.8.193

1.8.194

1.8.195

1.8.196

1.8.197

1.8.198

1.8.199

1.8.2

1.8.20

1.8.200

1.8.201

1.8.202

1.8.203

1.8.204

1.8.205

1.8.21

1.8.22

1.8.23

1.8.24

1.8.25

1.8.26

1.8.27

1.8.28

1.8.29

1.8.3

1.8.30

1.8.31

1.8.32

1.8.33

1.8.34

1.8.35

1.8.36

1.8.37

1.8.38

1.8.39

1.8.4

1.8.40

1.8.41

1.8.42

1.8.43

1.8.44

1.8.45

1.8.46

1.8.47

1.8.48

1.8.49

1.8.5

1.8.50

1.8.51

1.8.52

1.8.53

1.8.54

1.8.55

1.8.56

1.8.57

1.8.58

1.8.59

1.8.6

1.8.60

1.8.61

1.8.62

1.8.63

1.8.65

1.8.66

1.8.67

1.8.68

1.8.69

1.8.7

1.8.70

1.8.71

1.8.72

1.8.73

1.8.74

1.8.75

1.8.76

1.8.77

1.8.78

1.8.79

1.8.8

1.8.80

1.8.81

1.8.82

1.8.83

1.8.84

1.8.85

1.8.86

1.8.87

1.8.88

1.8.89

1.8.9

1.8.90

1.8.91

1.8.92

1.8.93

1.8.94

1.8.95

1.8.96

1.8.97

1.8.98

1.8.99

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27637.json"