CVE-2026-88880

Estado: Pendiente de análisisCrítica (9.2)—

Renovate before 44.11.3 fails to validate Link header destinations when following GitLab server pagination, allowing malicious servers to redirect credential-bearing requests. Attackers controlling a compromised GitLab server can specify a Link header pointing to attacker-controlled infrastructure to exfiltrate authentication credentials.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 9.2

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.50%
Percentil entre todas las CVEs puntuadas: 41
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access75 %
Impacto principalT1212 Exploitation for Credential Accesscredential access85 %
Impacto secundarioT1557 Adversary-in-the-Middlecredential access · collection70 %

AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-601 (Open Redirect) usado para redirigir solicitudes con credenciales; impacto primario T1212 (exfiltración de credenciales autenticadas). T1557 secundario por manipulación de respuestas del servidor.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Gitlab — Gitlab^AI Renovate — Renovate^AI

CWE

CWE-601

Referencias

JSON original (NVD)

Mostrar

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  "id": "CVE-2026-88880",
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-09-18T17:11:40.160815Z"
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          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  "published": "2026-09-10T14:17:16.480",
  "references": [
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      "url": "https://github.com/renovatebot/renovate/security/advisories/GHSA-9hmg-9h89-jhmx",
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    },
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    {
      "lang": "en",
      "value": "Renovate before 44.11.3 fails to validate Link header destinations when following GitLab server pagination, allowing malicious servers to redirect credential-bearing requests. Attackers controlling a compromised GitLab server can specify a Link header pointing to attacker-controlled infrastructure to exfiltrate authentication credentials."
    }
  ],
  "lastModified": "2026-09-29T23:17:23.310",
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}