CVE-2026-100836

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Source

https://cve.org/CVERecord?id=CVE-2026-100836

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100836.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-100836

Aliases

Published

2026-09-27T01:29:58Z

Modified

2026-09-28T03:48:30Z

Severity

5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator

Summary

Edgeless Systems Contrast through 1.20.0 Denial of Service via ciphertextContainer

Details

Contrast through 1.20.0 contains a panic vulnerability in the transit-engine endpoint's ciphertextContainer.UnmarshalJSON function that fails to validate decoded ciphertext length before slicing. An authenticated workload with a valid mesh certificate can trigger a runtime panic by submitting a short base64-encoded ciphertext, causing log spam and request failures without crashing the process.

Database specific

{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-129"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100836.json"
}

References

Affected packages

Git / github.com/edgelesssys/contrast

Affected ranges

Type

GIT

Repo

https://github.com/edgelesssys/contrast

Events

Introduced

Fixed

8f32af3e8d3ed928ea3e85079fd7ec621f9e1dca

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "1.20.0"
        },
        {
            "fixed":  "1.20.0"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100836.json"