CVE-2026-75583

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Source
https://cve.org/CVERecord?id=CVE-2026-75583
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75583.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-75583
Aliases
  • GHSA-mxxg-qffg-j3p6
Published
2026-08-19T16:35:53Z
Modified
2026-10-28T02:31:14Z
Severity
  • 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator
Summary
keeper.sh Calendar version prior to 2.18.14 SSRF Guard Bypass via DNS Rebinding
Details

keeper.sh's calendar module version prior to 2.18.14 contains a server-side request forgery (SSRF) guard bypass vulnerability that allows authenticated attackers to reach private network addresses by exploiting a DNS rebinding attack against the two-phase URL validation and connection flow. The SSRF guard validates a hostname's resolved IP addresses but discards them before the actual HTTP connection is opened, allowing an attacker who controls authoritative DNS to return a public address during validation and a private address during the subsequent independent socket-level DNS resolution, causing the guard to pass while the outbound connection reaches internal infrastructure such as cloud instance metadata endpoints.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75583.json"
}
References

Affected packages

Git / github.com/ridafkih/keeper.sh

Affected ranges

Type
GIT
Repo
https://github.com/ridafkih/keeper.sh
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
aea1cf537b850509e802b388f38cf1482cb6291b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.18.14"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "fixed":  "aea1cf537b850509e802b388f38cf1482cb6291b"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.18.14"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

2.*
2.8.7
2.9.31
v.*
v.2.12.2
v1.*
v1.1.4
v1.1.5
v1.1.6
v1.10.0
v1.10.1
v1.10.2
v1.10.3
v1.10.4
v1.10.5
v1.10.6
v1.10.7
v1.10.8
v1.10.9
v1.11.0
v1.11.0-beta.2
v1.11.1
v1.11.2
v1.11.4
v1.11.5
v1.11.6
v1.2.0
v1.2.1
v1.2.10
v1.2.11
v1.2.12
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.2.7
v1.2.8
v1.2.9
v1.3.0
v1.3.1-beta.1
v1.4.0
v1.4.1
v1.4.2
v1.5.0
v1.5.0-beta.1
v1.5.0-beta.2
v1.5.1
v1.5.2
v1.5.3
v1.6.0
v1.6.1
v1.6.1-beta.1
v1.7.0
v1.7.1
v1.7.2
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.9.0
v2.*
v2.0.0
v2.0.1
v2.1.0
v2.1.1
v2.1.10
v2.1.11
v2.1.12
v2.1.13
v2.1.14
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.1.7
v2.1.8
v2.1.9
v2.10.0
v2.10.1
v2.10.2
v2.10.3
v2.10.4
v2.11.0
v2.11.1
v2.11.2
v2.11.3
v2.11.4
v2.11.5
v2.11.6
v2.11.7
v2.12.0
v2.12.1
v2.12.2
v2.13.0
v2.13.1
v2.13.2
v2.13.3
v2.13.4
v2.13.5
v2.13.6
v2.13.7
v2.13.8
v2.14.0
v2.14.1
v2.14.10
v2.14.11
v2.14.12
v2.14.2
v2.14.3
v2.14.4
v2.14.5
v2.14.6
v2.14.7
v2.14.8
v2.14.9
v2.15.0
v2.15.1
v2.16.0
v2.17.0
v2.18.0
v2.18.1
v2.18.10
v2.18.11
v2.18.12
v2.18.13
v2.18.2
v2.18.3
v2.18.4
v2.18.5
v2.18.6
v2.18.7
v2.18.8
v2.18.9
v2.2.0
v2.2.1
v2.2.10
v2.2.11
v2.2.12
v2.2.13
v2.2.14
v2.2.15
v2.2.16
v2.2.17
v2.2.18
v2.2.19
v2.2.2
v2.2.20
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.2.7
v2.2.8
v2.2.9
v2.3.0
v2.3.1
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.5.0
v2.5.1
v2.5.10
v2.5.11
v2.5.12
v2.5.2
v2.5.3
v2.5.4
v2.5.5
v2.5.6
v2.5.7
v2.5.8
v2.5.9
v2.6.0
v2.6.1
v2.7.0
v2.7.1
v2.8.0
v2.8.1
v2.8.10
v2.8.11
v2.8.12
v2.8.2
v2.8.3
v2.8.4
v2.8.5
v2.8.6
v2.8.7
v2.8.8
v2.8.9
v2.9.0
v2.9.1
v2.9.10
v2.9.11
v2.9.12
v2.9.13
v2.9.14
v2.9.15
v2.9.16
v2.9.17
v2.9.18
v2.9.2
v2.9.20
v2.9.21
v2.9.22
v2.9.23
v2.9.24
v2.9.25
v2.9.26
v2.9.27
v2.9.28
v2.9.29
v2.9.3
v2.9.30
v2.9.31
v2.9.32
v2.9.33
v2.9.34
v2.9.35
v2.9.36
v2.9.4
v2.9.5
v2.9.6
v2.9.7
v2.9.8
v2.9.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75583.json"