---
cve: "CVE-2026-115971"
severity: "MEDIUM"
cvss: 6.9
epss: "0.4%"
vendor: "Travisun"
kev: false
exploited: false
published: "2026-10-24 17:30:17"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-27T18:52:38+01:00"
---

# CVE-2026-115971

> 6.9 MEDIUM

## Beschreibung

A vulnerability was found in Travisun Opptrix 0.4.0. Affected is the function Buffer.concat of the file /api/channels/webhook/ of the component preParsing handler. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been made public and could be used. The project has been completely taken offline and deprecated. The project maintainer explains: "The mentioned security risk was a design flaw that manifested primarily in local environments during earlier stages of version development. We previously addressed and resolved this specific risk; however, because the project was restricted to a small learning scope and the main versions were intended to run exclusively on localhost, the security fix was only pushed directly to our GitHub repository before it went private." This vulnerability only affects products that are no longer supported by the maintainer.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulDB**
- State: PUBLISHED
- Stand: 2026-10-26 17:38:02
- CNA-CVSS: **6.9** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-404** — Improper Resource Shutdown or Release
  The product does not release or incorrectly releases a resource before it is made available for re-use.

## Angriffsmuster (CAPEC)

- [CAPEC-125 — Flooding](https://capec.mitre.org/data/definitions/125.html) _(Severity: Medium)_
- [CAPEC-130 — Excessive Allocation](https://capec.mitre.org/data/definitions/130.html) _(Severity: Medium)_
- [CAPEC-131 — Resource Leak Exposure](https://capec.mitre.org/data/definitions/131.html) _(Severity: Medium)_
- [CAPEC-494 — TCP Fragmentation](https://capec.mitre.org/data/definitions/494.html)
- [CAPEC-495 — UDP Fragmentation](https://capec.mitre.org/data/definitions/495.html)
- [CAPEC-496 — ICMP Fragmentation](https://capec.mitre.org/data/definitions/496.html)
- [CAPEC-666 — BlueSmacking](https://capec.mitre.org/data/definitions/666.html) _(Severity: Medium)_

## ATT&CK-Techniken

- [T1498.001 — Network Denial of Service: Direct Network Flood](https://attack.mitre.org/techniques/T1498/001/)
- [T1499 — Endpoint Denial of Service](https://attack.mitre.org/techniques/T1499/)
- [T1499.003 — Endpoint Denial of Service:Application Exhaustion Flood](https://attack.mitre.org/techniques/T1499/003/)
- [T1499.001 — Endpoint Denial of Service: OS Exhaustion Flood](https://attack.mitre.org/techniques/T1499/001/)

## Referenzen

- <https://vuldb.com/vuln/426052>
- <https://vuldb.com/vuln/426052/cti>
- <https://vuldb.com/cve/CVE-2026-115971>
- <https://vuldb.com/submit/992175>
- <https://drive.google.com/drive/folders/1-crbh2joNwFbpXSQ4Iz1U0dSPy4ZTSf_?usp=sharing>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-115971/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_