chore(deps): update quay.io/prometheus/prometheus docker tag to v3.5.3

[renovate]

This PR contains the following updates:

Package	Update	Change
quay.io/prometheus/prometheus	patch	v3.5.1 → v3.5.3

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Release Notes

prometheus/prometheus (quay.io/prometheus/prometheus)

v3.5.3: 3.5.3 / 2026-04-27

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This release fixes mutiple security issues.

We would like to thank the following people for the responsible disclosures:

• Shadowbyte (4c1dr3aper) - Charlie Lewis for the Remote-Read snappy decode vulnerability.
• Brett Gervasoni for the AzureAD OAuth client_secret vulnerability.
• @​iiihaiii and @​Ngocnn97 for the Old UI XSS vulnerability.

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• [SECURITY] AzureAD remote write: Fix OAuth client_secret being exposed in plaintext via /-/config endpoint. GHSA-wg65-39gg-5wfj / CVE-2026-42151 #​18587
• [SECURITY] Remote-Write: Reject snappy-compressed requests whose declared decoded length exceeds the decode limit. #​18591
• [SECURITY] Remote-read: Reject snappy-compressed requests whose declared decoded length exceeds the decode limit. GHSA-8rm2-7qqf-34qm / CVE-2026-42154 #​18585
• [SECURITY] UI: Fix stored XSS via unescaped le label values in old UI heatmap chart tick labels. GHSA-fw8g-cg8f-9j28 #​18589

v3.5.2: 3.5.2 / 2026-04-13

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This release has a fix for a Stored XSS vulnerability that can be triggered via crafted metric names and label values in Prometheus web UI tooltips and metrics explorer. Thanks to Duc Anh Nguyen from TinyxLab for reporting it.

• [SECURITY] UI: Fix stored XSS via unescaped metric names and labels. CVE-2026-40179. #​18507
• [PERF] Regex: Stop calling Simplify. #​17908

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