CVE-2026-115971 (GCVE-0-2026-115971)
Vulnerability from cvelistv5 – Published: 2026-10-24 17:30 – Updated: 2026-10-24 17:30 Unsupported When Assigned
VLAI
EPSS
VEX
Title
Travisun Opptrix preParsing handler webhook Buffer.concat denial of service
Summary
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.
Severity
CWE
- CWE-404 - Denial of Service
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/426052 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/426052/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-115971 | third-party-advisory |
| https://vuldb.com/submit/992175 | third-party-advisory |
| https://drive.google.com/drive/folders/1-crbh2joN… | exploit |
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:travisun:opptrix:*:*:*:*:*:*:*:*"
],
"modules": [
"preParsing handler"
],
"product": "Opptrix",
"vendor": "Travisun",
"versions": [
{
"status": "affected",
"version": "0.4.0"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "fifker (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB CNA Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
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"baseSeverity": "MEDIUM",
"vectorString": "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",
"version": "4.0"
}
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"problemTypes": [
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"providerMetadata": {
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"technical-description"
],
"url": "https://vuldb.com/vuln/426052"
},
{
"name": "VDB-426052 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
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"url": "https://vuldb.com/vuln/426052/cti"
},
{
"name": "CVE-2026-115971 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-115971"
},
{
"name": "Submit #992175 | Opptrix Opptrix Server v0.4.0 Denial of Service",
"tags": [
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},
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"value": "VulDB entry created"
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"lang": "en",
"time": "2026-10-24T02:54:21.000Z",
"value": "VulDB entry last update"
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],
"title": "Travisun Opptrix preParsing handler webhook Buffer.concat denial of service",
"x_generator": [
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},
"cveMetadata": {
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"assignerShortName": "VulDB",
"cveId": "CVE-2026-115971",
"datePublished": "2026-10-24T17:30:17.983Z",
"dateReserved": "2026-10-24T00:49:04.049Z",
"dateUpdated": "2026-10-24T17:30:17.983Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
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"date": "2026-10-25",
"epss": "0.00372",
"percentile": "0.30916"
},
"nvd": {
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"affected": [
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:travisun:opptrix:*:*:*:*:*:*:*:*"
],
"modules": [
"preParsing handler"
],
"product": "Opptrix",
"vendor": "Travisun",
"versions": [
{
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"version": "0.4.0"
}
]
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],
"source": "cna@vuldb.com"
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"cveTags": [
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"tags": [
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]
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],
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{
"lang": "en",
"value": "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."
}
],
"id": "CVE-2026-115971",
"lastModified": "2026-10-24T18:16:48.550",
"metrics": {
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"baseSeverity": "MEDIUM",
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"authentication": "NONE",
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"baseScore": 5.0,
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}
],
"cvssMetricV31": [
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"scope": "UNCHANGED",
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"Recovery": "NOT_DEFINED",
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"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
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"valueDensity": "NOT_DEFINED",
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"published": "2026-10-24T18:16:48.550",
"references": [
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"url": "https://drive.google.com/drive/folders/1-crbh2joNwFbpXSQ4Iz1U0dSPy4ZTSf_?usp=sharing"
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}
}
}
}
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| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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