CVE-2026-42420

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Source

https://cve.org/CVERecord?id=CVE-2026-42420

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42420.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-42420

Aliases

GHSA-ccx3-fw7q-rr2r

Published

2026-04-28T18:10:11.948Z

Modified

2026-07-08T08:13:19.146149913Z

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

OpenClaw < 2026.4.8 - Improper Base64 Decoding Size Validation

Details

OpenClaw before 2026.4.8 contains improper input validation in base64 decode paths that allocate memory before enforcing decoded-size limits. Attackers can exploit multiple code paths to cause memory exhaustion or denial of service through crafted base64-encoded input.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42420.json",
    "cwe_ids": [
        "CWE-770"
    ],
    "cna_assigner": "VulnCheck"
}

References

Affected packages

Git / github.com/openclaw/openclaw

Affected ranges

Type

GIT

Repo

https://github.com/openclaw/openclaw

Events

Introduced

Fixed

abe7b2c49da95a47fc0fc01661cec9bfed6941fc

Fixed

d7c3210cd6f5fdfdc1beff4c9541673e814354d5

Database specific

{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2026.4.8"
        }
    ]
}

Affected versions

v0.*

v0.1.0

v0.1.1

v0.1.2

v0.1.3

v1.*

v1.0.4

v1.1.0

v1.2.0

v1.2.1

v1.2.2

v1.3.0

v2.*

v2.0.0-beta1

v2.0.0-beta2

v2.0.0-beta3

v2.0.0-beta4

v2.0.0-beta5

v2026.*

v2026.1.10

v2026.1.11

v2026.1.11-1

v2026.1.11-2

v2026.1.11-3

v2026.1.12

v2026.1.12-2

v2026.1.13

v2026.1.14-1

v2026.1.15

v2026.1.16-2

v2026.1.20

v2026.1.21

v2026.1.22

v2026.1.23

v2026.1.24

v2026.1.24-1

v2026.1.29

v2026.1.30

v2026.1.5

v2026.1.5-1

v2026.1.5-2

v2026.1.5-3

v2026.1.8

v2026.1.9

v2026.2.1

v2026.2.12

v2026.2.13

v2026.2.14

v2026.2.15-beta.1

v2026.2.17

v2026.2.19

v2026.2.19-beta.1

v2026.2.2

v2026.2.21

v2026.2.21-beta.1

v2026.2.22

v2026.2.22-beta.1

v2026.2.23

v2026.2.23-beta.1

v2026.2.24

v2026.2.24-beta.1

v2026.2.25

v2026.2.25-beta.1

v2026.2.26

v2026.2.26-beta.1

v2026.2.3

v2026.2.6

v2026.2.6-1

v2026.2.6-2

v2026.2.6-3

v2026.2.9

v2026.3.1

v2026.3.11

v2026.3.11-beta.1

v2026.3.12

v2026.3.13

v2026.3.13-1

v2026.3.2

v2026.3.2-beta.1

v2026.3.22

v2026.3.22-beta.1

v2026.3.23

v2026.3.23-2

v2026.3.23-beta.1

v2026.3.24

v2026.3.24-beta.1

v2026.3.24-beta.2

v2026.3.28

v2026.3.28-beta.1

v2026.3.31

v2026.3.31-beta.1

v2026.3.7

v2026.3.7-beta.1

v2026.3.8

v2026.3.8-beta.1

v2026.4.1

v2026.4.1-beta.1

v2026.4.2

v2026.4.5

v2026.4.7

v2026.4.7-1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42420.json"