# CVE-2026-5085: Solstice::Session versions through 1440 for Perl generates session ids insecurely

> Insecure session ID generation in Solstice::Session allows attackers to predict IDs and hijack user sessions.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Apr 2026
- **Updated:** 13 Apr 2026
- **Also known as:** GHSA-4g94-jfqp-p4f7

## What is CVE-2026-5085?

CVE-2026-5085 is a critical vulnerability in MCRAWFOR Solstice::Session, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-340 (Generation of Predictable Numbers or Identifiers), CWE-338 (Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG))

## Which versions are affected by CVE-2026-5085?

It affects 1 product.


Products: Mcrawfor Solstice\.

## How do I fix CVE-2026-5085?

No fix has been published for CVE-2026-5085 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5085 being exploited?

There is no known exploitation of CVE-2026-5085 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5085 and fix it if it is affected.

What it is: CVE-2026-5085 is a critical vulnerability in MCRAWFOR Solstice::Session, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-5085 in the wild and no public exploit code.

Affected product: MCRAWFOR Solstice::Session. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-5085/ (Markdown: https://insights.sbomify.com/CVE-2026-5085/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5085
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5085
- OSV: https://osv.dev/vulnerability/CVE-2026-5085

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5085/
Summaries are generated and may contain mistakes; the official description above is the record.