# CVE-2026-119711: PipesHub before 0.10.0 Rate Limit Bypass via Spoofed X-Forwarded-For Header

Status: published. Published: 2026-10-30. Updated: 2026-11-04.

PipesHub before 0.10.0 contains a rate limit bypass vulnerability in getClientIp() that allows unauthenticated attackers to evade per-IP throttling by spoofing X-Forwarded-For or X-Real-IP headers. Attackers can rotate header values to obtain fresh rate-limit buckets on authentication endpoints, enabling password spraying and OTP or password-reset email flooding.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/pipeshub-ai/pipeshub-ai/commit/84614464bb120e9f8e8c85420001260e709d99bb

## Affected products and versions

- pipeshub-ai / pipeshub-ai: ≥ 0; < 0.10.0 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N; source: CNA: VulnCheck

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.22% as of 2026-11-04; percentile 12.66%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-348

## Exploit evidence

- exploit: https://github.com/pipeshub-ai/pipeshub-ai/security/advisories/GHSA-78gw-g2h7-xvjj (ADP: CISA-ADP)

## References

- https://github.com/pipeshub-ai/pipeshub-ai/security/advisories/GHSA-78gw-g2h7-xvjj (CNA: VulnCheck; vendor-advisory)

- https://github.com/pipeshub-ai/pipeshub-ai/commit/84614464bb120e9f8e8c85420001260e709d99bb (CNA: VulnCheck; patch)

- https://github.com/pipeshub-ai/pipeshub-ai/blob/v0.9.1/backend/nodejs/apps/src/libs/middlewares/rate-limit.middleware.ts (CNA: VulnCheck; technical-description)

- https://github.com/pipeshub-ai/pipeshub-ai/releases/tag/v0.10.0 (CNA: VulnCheck; release-notes)

- https://github.com/pipeshub-ai/pipeshub-ai (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/pipeshub-before-0.10.0-rate-limit-bypass-via-spoofed-x-forwarded-for-header (CNA: VulnCheck; third-party-advisory)

- https://github.com/pipeshub-ai/pipeshub-ai/security/advisories/GHSA-78gw-g2h7-xvjj (ADP: CISA-ADP; exploit)

- https://github.com/pipeshub-ai/pipeshub-ai (disclosure@vulncheck.com)

- https://github.com/pipeshub-ai/pipeshub-ai/blob/v0.9.1/backend/nodejs/apps/src/libs/middlewares/rate-limit.middleware.ts (disclosure@vulncheck.com)

- https://github.com/pipeshub-ai/pipeshub-ai/commit/84614464bb120e9f8e8c85420001260e709d99bb (disclosure@vulncheck.com)

- https://github.com/pipeshub-ai/pipeshub-ai/releases/tag/v0.10.0 (disclosure@vulncheck.com)

- https://github.com/pipeshub-ai/pipeshub-ai/security/advisories/GHSA-78gw-g2h7-xvjj (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/pipeshub-before-0.10.0-rate-limit-bypass-via-spoofed-x-forwarded-for-header (disclosure@vulncheck.com)

- https://github.com/pipeshub-ai/pipeshub-ai/security/advisories/GHSA-78gw-g2h7-xvjj (134c704f-9b21-4f2e-91b3-4a467353bcc0)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-119711; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-119711; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119711; retrieved 2026-11-04; source updated Not reported

Revision: f0d38f39a97ae4d33cb3544690ed5ac5e81b79152c091975f345bfd0287d87d5

Canonical: https://y2.dev/cve/CVE-2026-119711

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