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Vulnerability record · CVE-2026-26069 · published 12 February 2026

CVE-2026-26069: Thecfu scraparr information exposure vulnerability

TThecfu · Scraparr

Scraparr is a Prometheus Exporter for various components of the *arr Suite. From 3.0.0-beta to before 3.0.2, when the Readarr integration was enabled, the exporter exposed the configured Readarr API key as the alias metric label value. Users were affected only if all of the following conditions are met, Readarr scraping feature was enabled and no alias configured, the exporter’s /metrics endpoint was accessible to external or unauthorized users, and the Readarr instance is externally accessible. If the /metrics endpoint was publicly accessible, the Readarr API key could have been disclosed via exported metrics data. This vulnerability is fixed in 3.0.2.

9.1 CVSS 4.0 Critical EPSS 0.51% · top 58.8% CWE-200 · Information exposure
9.1CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Scraparr is a Prometheus Exporter for various components of the *arr Suite. From 3.0.0-beta to before 3.0.2, when the Readarr integration was enabled, the exporter exposed the configured Readarr API key as the alias metric label value. Users were affected only if all of the following conditions are met, Readarr scraping feature was enabled and no alias configured, the exporter’s /metrics endpoint was accessible to external or unauthorized users, and the Readarr instance is externally accessible. If the /metrics endpoint was publicly accessible, the Readarr API key could have been disclosed via exported metrics data. This vulnerability is fixed in 3.0.2.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/thecfu/scraparr/commit/194116bb8fb0b6ea26421b3e7a7b326973f56cd0 Patch
https://github.com/thecfu/scraparr/releases/tag/v3.0.2 ProductRelease Notes
https://github.com/thecfu/scraparr/security/advisories/GHSA-hx24-222f-w5cj PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-26069), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.