CVE-2026-92749: Weak RNG (CVSS 8.1)

Description

SafeLine through 9.4.1 derives the management console session-signing secret from a time-seeded math/rand generator, allowing attackers to reconstruct the key offline. Unauthenticated remote attackers who can bound the install timestamp can regenerate the secret and forge valid administrator session cookies to gain control of protected sites.

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CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0071

Probability of exploitation

0.53%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-338 CWE-338

References

Other References

https://github.com/chaitin/SafeLine https://github.com/chaitin/SafeLine/blob/v9.4.1/management/webserver/model/option.go#L27 https://github.com/chaitin/SafeLine/blob/v9.4.1/management/webserver/utils/random.go#L10-L17 https://github.com/chaitin/SafeLine/issues/1298 https://www.vulncheck.com/advisories/safeline-through-9.4.1-authentication-bypass-via-weak-session-secret https://github.com/chaitin/SafeLine/issues/1298

Frequently Asked Questions

What is CVE-2026-92749? +

SafeLine through 9.4.1 derives the management console session-signing secret from a time-seeded math/rand generator, allowing attackers to reconstruct the key offline. Unauthenticated remote attackers who can bound the install timestamp can regenerate the secret and forge valid administrator session cookies to gain control of protected sites. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-92749? +

CVE-2026-92749 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0071, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-92749? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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