CVE-2026-56306

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Source
https://cve.org/CVERecord?id=CVE-2026-56306
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56306.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-56306
Aliases
  • GHSA-42vv-8j94-24wj
Published
2026-06-22T21:04:46.832Z
Modified
2026-08-12T03:51:40.160453892Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Capgo - Subkey Enforcement Bypass via x-limited-key-id Header Parsing
Details

Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header to disable limited key scoping and execute requests using the main API key context instead of restricted subkey permissions.

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ],
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56306.json"
}
References

Affected packages

Git / github.com/Cap-go/capgo.app

Affected ranges

Type
GIT
Repo
https://github.com/Cap-go/capgo.app
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6685e5f11adef257bf3d085e481f4d8ebcec602e
Database specific
Show details 
{
    "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-2026-56306.json"