How severe is CVE-2026-5085?

CVE-2026-5085 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-5085 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5085?

CVE-2026-5085 affects Mcrawfor Solstice. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5085?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-5085 have an EU (EUVD) identifier?

Yes. CVE-2026-5085 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21885.

When was CVE-2026-5085 published?

CVE-2026-5085 was published on 2026-04-13 and last updated on 2026-06-17.

CVE-2026-5085

CVE-2026-5085 is a critical-severity vulnerability in Mcrawfor Solstice with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-338.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21885
Weakness: CWE-338
Affected product: Mcrawfor Solstice
Published: 2026-04-13
Last modified: 2026-06-17

Description

Solstice::Session versions through 1440 for Perl generates session ids insecurely. The _generateSessionID method returns an MD5 digest seeded by the epoch time, a random hash reference, a call to the built-in rand() function and the process id. The same method is used in the _generateID method in Solstice::Subsession, which is part of the same distribution. The epoch time may be guessed, if it is not leaked in the HTTP Date header. Stringified hash refences will contain predictable content. The built-in rand() function is seeded by 16-bits and is unsuitable for security purposes. The process id comes from a small set of numbers. Predictable session ids could allow an attacker to gain access to systems.

Frequently asked questions

What is CVE-2026-5085?: Solstice::Session versions through 1440 for Perl generates session ids insecurely. The _generateSessionID method returns an MD5 digest seeded by the epoch time, a random hash reference, a call to the built-in rand() function and the process id. The same method is used in the _generateID method in Solstice::Subsession, which is part of the same distribution. The epoch time may be guessed, if it is not leaked in the HTTP Date header. Stringified hash refences will contain predictable content. The built-in rand() function is seeded by 16-bits and is unsuitable for security purposes. The process id comes from a small set of numbers. Predictable session ids could allow an attacker to gain access to systems.
How severe is CVE-2026-5085?: CVE-2026-5085 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-5085 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5085?: CVE-2026-5085 affects Mcrawfor Solstice. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5085?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-5085 have an EU (EUVD) identifier?: Yes. CVE-2026-5085 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21885.
When was CVE-2026-5085 published?: CVE-2026-5085 was published on 2026-04-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mcrawfor:solstice\:\:session:1440:*:*:*:*:perl:*:*

Other CWE-338 vulnerabilities

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CVE-2026-2439 — Critical (CVSS 9.8): Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generate_session_id…
CVE-2025-15578 — Critical (CVSS 9.8): Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely. The session id is seeded with the…

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