# CVE-2026-9692: Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely

> Insecure session ID generation allows attackers to predict session tokens and potentially hijack user accounts.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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:** 18 Jun 2026
- **Updated:** 18 Jun 2026
- **Also known as:** GHSA-3m67-fq74-f4qg

## What is CVE-2026-9692?

CVE-2026-9692 is a medium-severity vulnerability in HAYAJO Mojolicious::Sessions::Storable, published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Mojolicious::Sessions::Storable versions through 0.05 for Perl generate session ids insecurely.

The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, the heap address of an anonymous hash, and the PID.

These are predictable or low-entropy sources that are unsuitable for security purposes.

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-2026-9692?


## How do I fix CVE-2026-9692?

No fix has been published for CVE-2026-9692 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9692 being exploited?

There is no known exploitation of CVE-2026-9692 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9692 and fix it if it is affected.

What it is: CVE-2026-9692 is a medium-severity vulnerability in HAYAJO Mojolicious::Sessions::Storable, published on 18 Jun 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-2026-9692 in the wild and no public exploit code.

Affected product: HAYAJO Mojolicious::Sessions::Storable. 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-2026-9692/ (Markdown: https://insights.sbomify.com/CVE-2026-9692/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9692
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9692
- OSV: https://osv.dev/vulnerability/CVE-2026-9692

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-9692/
Summaries are generated and may contain mistakes; the official description above is the record.