CVE-2026-18536

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Source

https://cve.org/CVERecord?id=CVE-2026-18536

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18536.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-18536

Aliases

GHSA-845w-rcqw-jwvv

Downstream

DEBIAN-CVE-2026-18536

Published

2026-08-01T10:35:38.392Z

Modified

2026-08-02T03:47:45.777052402Z

Summary

Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP

Details

Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP.

The Data::Entropy::RawSource::RandomOrg and Data::Entropy::RawSource::RandomnumbersInfo remote sources are accessed over plain HTTP.

The Data::Entropy::RawSource::RandomOrg integrity check trivially matches any non-empty byte string.

Any on-path attacker, such as open WiFi, a compromised ISP, captive portal, or a hostile egress proxy substitutes the response and thereby chooses the bytes returned by randbits and randint for every application that selected one of these sources via withentropysource. The _checkbuf method response is equally attacker-controlled, so the retry/sleep behaviour is steerable too.

Database specific

{
    "cwe_ids": [
        "CWE-319",
        "CWE-353"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18536.json",
    "cna_assigner": "CPANSec"
}

References

Affected packages

Git / github.com/robrwo/data-entropy

Affected ranges

Type

GIT

Repo

https://github.com/robrwo/data-entropy

Events

Introduced

Fixed

a07c1b739206e29cb0b56ccc0583be3cdabbe202

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.010"
        }
    ]
}

Affected versions

v0.*

v0.007

v0.008

v0.009

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18536.json"