CVE-2026-81181Network attack vectorHinoki check available

Shared-note access via unrotated session identifier

Published Sep 18, 2026 · Updated Sep 18, 2026

Session fixation in Syslifters GmbH SysReptor before 2026.68 allows remote authenticated users to access password-protected shared notes. The shared-note auth view accepts the correct password and adds the note identifier to the existing session without first cycling its key. Exploitation requires a preset unauthenticated cookie in the victim's browser, the shared-note URL, and victim interaction; the main login is unaffected.

CVSS severity3.7
Low
EPSS probability0.28%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Session fixation in Syslifters GmbH SysReptor before 2026.68 allows remote authenticated users to access password-protected shared notes. The shared-note auth view accepts the correct password and adds the note identifier to the existing session without first cycling its key. Exploitation requires a preset unauthenticated cookie in the victim's browser, the shared-note URL, and victim interaction; the main login is unaffected.

The record

CVE
CVE-2026-81181
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
Syslifters GmbH
Product
SysReptor
Classifications
CWE-384, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.68

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Syslifters GmbH · SysReptorversion=< 2026.68

Published CVSS scores

3.7GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-384Session Fixation
T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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