CVE-2026-56338

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Source
https://cve.org/CVERecord?id=CVE-2026-56338
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56338.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56338
Aliases
  • GHSA-m53g-7gcj-x6f7
Published
2026-06-24T11:53:18.366Z
Modified
2026-07-15T01:49:18.211017772Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint
Details

Capgo before 12.128.2 contains a denial of service vulnerability in the /auth/v1/otp endpoint that prevents email verification for two-factor authentication due to captcha validation failures. Authenticated users cannot complete 2FA enrollment as the backend consistently returns HTTP 500 errors with captcha verification process failed messages, blocking access to security controls.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-703"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56338.json"
}
References

Affected packages

Git / github.com/cap-go/capgo

Affected ranges

Type
GIT
Repo
https://github.com/cap-go/capgo
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6685e5f11adef257bf3d085e481f4d8ebcec602e
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "12.128.2"
        }
    ]
}

Affected versions

0.*
0.1.6
0.1.8
0.11.0
0.14.0
0.14.2
0.14.5
0.14.6
0.15.1
0.16.0
0.16.1
0.16.3
0.18.2
0.19.0
0.20.1
0.20.2
0.23.0
0.24.1
0.26.0
0.26.1
0.29.1
0.29.5
0.3.1
0.30.12
0.30.12-alpha.1
0.30.19
0.30.2
0.30.5-alpha.4
0.30.6-alpha.0
0.30.6-alpha.2
0.30.8-alpha.0
0.30.8-alpha.1
0.30.8-alpha.4
0.30.9-alpha.0
0.30.9-alpha.10
0.30.9-alpha.15
0.30.9-alpha.16
0.30.9-alpha.3
0.30.9-alpha.6
0.30.9-alpha.9
0.6.1
1.*
1.10.0
1.10.1
1.10.2
1.11.0
1.11.1
1.12.1
1.13.11
1.13.12
1.13.13
1.13.3
1.13.4
1.13.5
1.14.4
1.14.6
1.16.0-alpha.0
1.16.1-alpha.0
1.16.3-alpha.0
1.17.0
1.17.0-alpha.0
1.17.0-alpha.1
1.18.0
1.18.1
1.18.10
1.18.16
1.18.2
1.18.24
1.18.26
1.18.28
1.18.33
1.18.36
1.18.4
1.18.5
1.18.8
1.18.9
1.19.3
1.19.4
1.19.5
1.20.0
1.20.1
1.20.2
1.20.3
1.21.0
1.21.10
1.21.11
1.21.19
1.21.23
1.21.25
1.21.6
1.21.7
1.21.8
1.21.9
1.22.1
1.22.2
1.23.0
1.23.1
1.24.0
1.24.1
1.24.10
1.24.16
1.24.17
1.24.18
1.24.2
1.24.3
1.25.14
1.25.2
1.25.6
1.25.7
1.26.1
1.26.2
1.27.0
1.27.1
1.27.2
1.27.3
1.27.6
1.28.3
1.31.1
1.31.3
1.31.4
1.33.3
1.34.0
1.35.0
1.35.1
1.36.12
1.36.15
1.36.22
1.36.24
1.36.25
1.36.4
1.36.41
1.36.49
1.36.7
1.36.8
1.37.15
1.37.22
1.37.31
1.37.5
1.39.0
1.43.1
1.44.1
1.44.11
1.44.12
1.44.15
1.44.16
1.44.19
1.44.21
1.44.26
1.45.0
1.45.1
1.45.2
1.45.3
1.45.4
1.46.0
1.46.4
1.47.0
1.47.1
1.47.3
1.48.0
1.48.1
1.50.0
1.50.1
1.50.2
1.50.3
1.51.0
1.52.1
1.52.2
1.52.3
1.53.0
1.53.1
1.53.2
1.53.3
1.53.4
1.53.5
1.53.6
1.53.7
1.53.8
1.54.0
1.54.1
1.54.2
1.54.3
1.54.4
1.54.5
1.54.6
1.54.9
1.55.0
1.55.12
1.55.2
1.55.23
1.55.3
1.55.31
1.55.35
1.55.37
1.55.38
1.55.39
1.55.4
1.55.42
1.55.43
1.55.44
1.55.5
1.55.6
1.55.9
1.58.1
1.58.15
1.58.16
1.6.11
1.6.7
1.60.4
1.61.12
1.61.14
1.61.15
1.61.17
1.61.2
1.61.21
1.61.23
1.61.27
1.61.33
1.61.34
1.61.35
1.62.0
1.62.1
1.62.4
1.64.1
1.66.4
1.7.10
1.7.15
1.7.24
1.7.27
1.7.28
1.8.1
1.8.3
1.8.6
1.8.7-alpha.0
1.8.7-alpha.1
1.8.7-alpha.2
1.9.0-alpha.0
1.9.1
1.9.10
1.9.6
1.9.7
1.9.9
10.*
10.0.0
capgo-12.*
capgo-12.123.9
capgo-12.124.0
capgo-12.124.1
capgo-12.124.3
capgo-12.124.4
capgo-12.124.5
capgo-12.124.6
capgo-12.124.7
capgo-12.124.9
capgo-12.125.0
capgo-12.126.0
capgo-12.126.1
capgo-12.126.2
capgo-12.127.0
capgo-12.127.1
capgo-12.127.10
capgo-12.127.11
capgo-12.127.12
capgo-12.127.13
capgo-12.127.14
capgo-12.127.15
capgo-12.127.16
capgo-12.127.17
capgo-12.127.18
capgo-12.127.19
capgo-12.127.2
capgo-12.127.20
capgo-12.127.21
capgo-12.127.22
capgo-12.127.23
capgo-12.127.3
capgo-12.127.4
capgo-12.127.5
capgo-12.127.8
capgo-12.127.9
capgo-12.128.0
capgo-12.128.1
cli-7.*
cli-7.94.0
cli-7.94.1
cli-7.94.5
cli-7.94.6
cli-7.94.7
cli-7.94.8
cli-7.94.9
cli-7.95.0
cli-7.95.1
cli-7.95.10
cli-7.95.2
cli-7.95.3
cli-7.95.4
cli-7.95.5
cli-7.95.6
cli-7.95.7
cli-7.95.8
cli-7.95.9
v12.*
v12.100.0
v12.100.1
v12.100.10
v12.100.11
v12.100.12
v12.100.13
v12.100.14
v12.100.15
v12.100.3
v12.100.4
v12.100.5
v12.100.6
v12.100.7
v12.100.8
v12.100.9
v12.101.0
v12.101.1
v12.102.0
v12.102.1
v12.102.2
v12.102.3
v12.102.4
v12.102.6
v12.103.1
v12.104.2
v12.104.3
v12.105.0
v12.105.3
v12.105.4
v12.105.5
v12.105.6
v12.105.8
v12.105.9
v12.106.0
v12.106.1
v12.106.2
v12.107.0
v12.107.1
v12.107.10
v12.107.11
v12.107.19
v12.107.2
v12.107.20
v12.107.21
v12.107.22
v12.107.24
v12.107.26
v12.107.3
v12.107.4
v12.107.5
v12.107.6
v12.107.7
v12.107.8
v12.108.0
v12.108.1
v12.108.10
v12.108.11
v12.108.12
v12.108.13
v12.108.14
v12.108.15
v12.108.16
v12.108.17
v12.108.18
v12.108.19
v12.108.2
v12.108.3
v12.108.4
v12.108.5
v12.108.6
v12.108.7
v12.108.8
v12.108.9
v12.109.0
v12.109.1
v12.109.10
v12.109.11
v12.109.12
v12.109.13
v12.109.14
v12.109.15
v12.109.17
v12.109.2
v12.109.3
v12.109.4
v12.109.5
v12.109.6
v12.109.7
v12.109.8
v12.109.9
v12.110.0
v12.110.2
v12.110.3
v12.110.4
v12.110.5
v12.110.6
v12.111.1
v12.111.2
v12.111.3
v12.112.0
v12.112.1
v12.112.2
v12.112.3
v12.112.4
v12.112.5
v12.112.6
v12.113.0
v12.113.1
v12.113.2
v12.114.0
v12.114.1
v12.114.12
v12.114.2
v12.114.4
v12.114.6
v12.114.7
v12.114.9
v12.115.0
v12.115.2
v12.116.0
v12.116.1
v12.116.10
v12.116.11
v12.116.12
v12.116.13
v12.116.14
v12.116.15
v12.116.16
v12.116.17
v12.116.18
v12.116.19
v12.116.2
v12.116.20
v12.116.21
v12.116.22
v12.116.23
v12.116.24
v12.116.27
v12.116.28
v12.116.29
v12.116.3
v12.116.30
v12.116.33
v12.116.34
v12.116.39
v12.116.4
v12.116.40
v12.116.41
v12.116.45
v12.116.46
v12.116.47
v12.116.48
v12.116.49
v12.116.5
v12.116.50
v12.116.51
v12.116.52
v12.116.53
v12.116.54
v12.116.55
v12.116.56
v12.116.57
v12.116.58
v12.116.59
v12.116.6
v12.116.60
v12.116.61
v12.116.62
v12.116.63
v12.116.64
v12.116.65
v12.116.66
v12.116.67
v12.116.68
v12.116.69
v12.116.7
v12.116.70
v12.116.71
v12.116.72
v12.116.8
v12.116.9
v12.117.1
v12.117.2
v12.117.3
v12.117.4
v12.117.5
v12.117.6
v12.117.8
v12.118.0
v12.118.1
v12.118.2
v12.119.0
v12.119.10
v12.119.12
v12.119.13
v12.119.14
v12.119.15
v12.119.16
v12.119.17
v12.119.18
v12.119.19
v12.119.20
v12.119.21
v12.119.3
v12.119.4
v12.119.5
v12.119.6
v12.119.8
v12.119.9
v12.120.10
v12.120.11
v12.120.12
v12.120.13
v12.120.14
v12.120.15
v12.120.16
v12.120.19
v12.120.20
v12.120.4
v12.120.5
v12.120.6
v12.120.7
v12.120.8
v12.120.9
v12.121.0
v12.121.1
v12.121.10
v12.121.11
v12.121.2
v12.121.4
v12.121.5
v12.121.6
v12.121.7
v12.121.8
v12.121.9
v12.122.0
v12.122.1
v12.122.10
v12.122.11
v12.122.12
v12.122.13
v12.122.14
v12.122.15
v12.122.16
v12.122.2
v12.122.3
v12.122.4
v12.122.5
v12.122.6
v12.122.7
v12.122.8
v12.122.9
v12.123.0
v12.123.1
v12.123.2
v12.123.3
v12.123.4
v12.123.5
v12.123.6
v12.123.7
v12.123.8
v12.55.3
v12.55.4
v12.55.5
v12.55.8
v12.55.9
v12.56.0
v12.56.1
v12.56.10
v12.56.11
v12.56.12
v12.56.13
v12.56.14
v12.56.15
v12.56.16
v12.56.18
v12.56.2
v12.56.24
v12.56.25
v12.56.26
v12.56.4
v12.56.6
v12.56.7
v12.56.8
v12.56.9
v12.73.2
v12.84.5
v12.84.6
v12.85.0
v12.85.1
v12.85.2
v12.85.3
v12.85.4
v12.85.7
v12.85.8
v12.85.9
v12.86.0
v12.86.2
v12.87.1
v12.89.12
v12.89.14
v12.89.15
v12.89.16
v12.89.17
v12.89.5
v12.89.6
v12.89.9
v12.90.0
v12.90.1
v12.90.2
v12.90.3
v12.91.0
v12.91.1
v12.91.10
v12.91.12
v12.91.14
v12.91.15
v12.91.2
v12.91.3
v12.91.4
v12.91.5
v12.91.6
v12.91.7
v12.91.8
v12.91.9
v12.92.0
v12.93.0
v12.93.1
v12.93.2
v12.93.3
v12.93.4
v12.93.5
v12.93.6
v12.94.0
v12.94.1
v12.94.2
v12.94.6
v12.95.0
v12.96.0
v12.96.1
v12.96.2
v12.97.0
v12.97.1
v12.98.1
v12.98.2
v12.98.3
v12.99.0
v12.99.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56338.json"