Medium [CVE-2026-87057] Runtime base images referenced by mutable floating tags
This medium-severity Red Hat Linux advisory covers CVE-2026-87057.
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Summary
A flaw was found in olm-operator-konflux-sample. The build pipelines use mutable floating tags to reference runtime base images instead of immutable SHA256 digests.
This configuration allows for the content of the base images to be altered without detection, potentially leading to the introduction of malicious code or unexpected changes in the build process. An attacker could exploit this to compromise the integrity of the software supply chain.
This practice, coupled with `ose-operator-registry` being excluded from digest tracking, introduces a supply chain risk where unexpected or malicious image content could be inadvertently incorporated into builds. Red Hat severity: Moderate — CVSS 4.2 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N).
Weakness: CWE-829.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- To mitigate this issue, configure build pipelines to reference runtime base images using immutable `sha256` digests (e.g., `<tag>@sha256:<digest>`) instead of mutable floating tags. Additionally, ensure `ose-operator-registry` is included in Renovate's digest tracking by either removing it from the `ignoreDeps` list in `renovate.json` or by adding a specific `pinDigests: true` rule. These changes must be applied to your build pipeline definitions and `renovate.json` configuration to take effect.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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