# CVE-2026-81181: SysReptor: Session Fixation in Password-Protected Shared Notes

> Attackers can hijack sessions for password-protected shared notes by fixing session IDs, allowing unauthorized access to sensitive report data.

- **Severity:** Low 3.7 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Sep 2026
- **Updated:** 21 Sep 2026
- **Also known as:** GHSA-wgx3-84xg-q93j

## What is CVE-2026-81181?

CVE-2026-81181 is a low-severity authentication bypass vulnerability in Syslifters sysreptor, published on 18 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

SysReptor is a fully customizable pentest reporting platform. Prior to 2026.68, the password authentication flow for protected shared notes does not rotate the session identifier after successful authentication, allowing session fixation. An attacker who can obtain an unauthenticated SysReptor session cookie, place it in a victim's browser, and know the shared-note URL where the victim authenticates can reuse the fixed session after the victim enters the correct password and access that shared note. The main SysReptor login flow is not affected. This issue is fixed in version 2026.68.

Weakness: CWE-384 (Session Fixation)

## Which versions are affected by CVE-2026-81181?


## How do I fix CVE-2026-81181?

No fix has been published for CVE-2026-81181 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81181 being exploited?

There is no known exploitation of CVE-2026-81181 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81181 and fix it if it is affected.

What it is: CVE-2026-81181 is a low-severity authentication bypass vulnerability in Syslifters sysreptor, published on 18 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-81181 in the wild and no public exploit code.

Affected product: Syslifters sysreptor. 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-2026-81181/ (Markdown: https://insights.sbomify.com/CVE-2026-81181/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81181
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81181
- OSV: https://osv.dev/vulnerability/CVE-2026-81181

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81181/
Summaries are generated and may contain mistakes; the official description above is the record.