{"id":"CVE-2026-54532","kind":"vulnerability","aliases":["CVE-2026-54532"],"related":[],"title":"CloudPirates Helm charts: CI cache poisoning can steal release tokens","description":"CloudPirates Open Source Helm Charts is a collection of Helm charts. Prior to commit 271d415, pull_request_target workflow is vulnerable to cache poisoning and OIDC token theft. A pull_request_target workflow checks out fork code using github.event.pull_request.head.sha or .head.ref. This gives attacker-controlled code access to base repository secrets and tokens. A pull_request_target workflow writes to a shared Actions cache. A subsequent release or publish workflow restores from the same cache scope, allowing a poisoned cache entry to execute during release. This issue has been patched via commit 271d415.","summary":"The CI workflows in the CloudPirates Open Source Helm Charts repository ran fork pull request code with access to base repository secrets and wrote to a shared Actions cache. A later release workflow restored that cache, so a poisoned entry could run during a release and expose OIDC tokens.","severity":"medium","cvss":6.9,"epss":0.00187,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ci-cd","github-actions","helm","infrastructure","kubernetes"],"not_affected_if":["default-config"],"how_to_check":"- Check whether your fork of the CloudPirates Helm charts repository includes commit `271d415` or later\n- Review any `pull_request_target` workflows for checkout of `github.event.pull_request.head.sha` or `.head.ref` followed by cache writes","fix":"- Update to a commit at or after `271d415`, which the sources say patches the issue\n- unknown whether a released chart version contains the fix","status":"open","published_at":"2026-10-22T18:17:29+00:00","first_seen_at":"2026-10-23T21:57:31+00:00","triaged_at":"2026-10-25T03:38:54+00:00","updated_at":"2026-10-25T03:38:54+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-25T03:38:54Z","model":"claude-haiku-5-5","output":{"fix":"- Update to a commit at or after `271d415`, which the sources say patches the issue\n- unknown whether a released chart version contains the fix","reach":"internet","title":"CloudPirates Helm charts: CI cache poisoning can steal release tokens","impact":"high","summary":"The CI workflows in the CloudPirates Open Source Helm Charts repository ran fork pull request code with access to base repository secrets and wrote to a shared Actions cache. A later release workflow restored that cache, so a poisoned entry could run during a release and expose OIDC tokens.","category":"infrastructure","nicknames":[],"who_cares":["helm","kubernetes","github-actions","ci-cd"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker code runs in release workflow and steals OIDC tokens and secrets","analyst_note":"Confirm which release tags include commit 271d415 and whether published chart artifacts were built from a poisoned cache; check the NVD entry for the affected version range.","how_to_check":"- Check whether your fork of the CloudPirates Helm charts repository includes commit `271d415` or later\n- Review any `pull_request_target` workflows for checkout of `github.event.pull_request.head.sha` or `.head.ref` followed by cache writes","needs_analyst":true,"not_affected_if":["default-config"],"who_is_affected":"Teams that consume or fork the CloudPirates Open Source Helm Charts repository and run its CI or release workflows. Users who only install published charts from a registry and do not build from this repository are unlikely to be affected, but the sources do not say this explicitly.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000642,"input_tokens":3453,"output_tokens":594,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-54532':13A,16A '271d415':89C,168C 'access':43B,122C 'action':22B,53B,138C 'allow':152C 'attack':119C 'attacker-control':118C 'base':45B,124C 'cach':5A,54B,61B,97C,139C,150C,155C 'cd':19B 'chart':3A,35B,79C,85C 'check':108C 'ci':4A,18B,27B 'ci-cd':17B 'cloudpir':1A,31B,75C 'code':41B,111C,121C 'collect':82C 'commit':88C,167C 'control':120C 'could':66B 'cve':11A,14A 'entri':65B,156C 'execut':158C 'expos':72B 'fork':38B,110C 'github':21B 'github-act':20B 'github.event.pull_request.head.sha':113C 'give':117C 'head.ref':115C 'helm':2A,23B,34B,78C,84C 'infrastructur':24B 'issu':162C 'kubernet':25B 'later':56B 'oidc':73B,100C 'open':32B,76C 'patch':165C 'poison':6A,64B,98C,154C 'prior':86C 'publish':144C 'pull':39B,90C,104C,130C 'ran':37B 'releas':9A,57B,70B,142C,160C 'repositori':36B,46B,125C 'request':40B,91C,105C,131C 'restor':59B,146C 'run':67B 'scope':151C 'secret':47B,126C 'share':52B,137C 'sourc':33B,77C 'steal':8A 'subsequ':141C 'target':92C,106C,132C 'theft':102C 'token':10A,74B,101C,128C 'use':112C 'via':166C 'vulner':95C 'workflow':28B,58B,93C,107C,133C,145C 'write':134C 'wrote':49B","nicknames":[],"mitigations":[],"who_affected":"Teams that consume or fork the CloudPirates Open Source Helm Charts repository and run its CI or release workflows. Users who only install published charts from a registry and do not build from this repository are unlikely to be affected, but the sources do not say this explicitly.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-22T18:17:29+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:L","cvss_by":"security-advisories@github.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-54532","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54532","severity":null,"published_at":"2026-10-22T18:17:29+00:00","modified_at":"2026-10-23T19:57:42+00:00","first_seen_at":"2026-10-23T21:57:31+00:00","fetched_at":"2026-10-23T22:29:02+00:00","note":null},{"source":"epss","external_id":"CVE-2026-54532","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-54532","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T07:15:51+00:00","fetched_at":"2026-10-24T07:15:51+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}