CVE-2026-93336
validatingZero is analyzing and reversing it now.GHSA-43hf-rrv4-hhf5 ↗EUVD-2026-108266 ↗
description
Canonical Juju 4.0 through 4.0.15 improperly authorizes resource-download requests. A controller-authenticated unit agent or user with only login permission may read charm resources belonging to applications in other models, including potentially sensitive registry credentials, by requesting another unit's resource. The attacker must already be authenticated to the Juju controller.
Still under analysis: more detail becomes available as the pipeline runs.
mitigation
Restrict controller access to trusted principals and remove unnecessary login-only accounts or unit-agent credentials. Upgrade to a vendor-fixed release when its supported fixed version is identified; the supplied evidence does not name one.
fixed in 4.0.16
outcome
Run in progress: no artifact yet.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-22 17:32Zghsa: trigger signal, started the run
- 2026-10-22 17:32Zcve.org record for CVE-2026-93336
this entry in the feed
GET /api/v1/feed/CVE-2026-93336
{ "etk_id": "ETK-2026-2488", "cve_id": "CVE-2026-93336", "display_id": "CVE-2026-93336", "ghsa_id": "GHSA-43hf-rrv4-hhf5", "euvd_id": "EUVD-2026-108266", "status": "in_pipeline", "anchor_state": "anchored", "title": "Authorization bypass in Canonical Juju resource downloads", "summary": "Canonical Juju 4.0 through 4.0.15 improperly authorizes resource-download requests. A controller-authenticated unit agent or user with only login permission may read charm resources belonging to applications in other models, including potentially sensitive registry credentials, by requesting another unit's resource. The attacker must already be authenticated to the Juju controller.", "mitigation": "Restrict controller access to trusted principals and remove unnecessary login-only accounts or unit-agent credentials. Upgrade to a vendor-fixed release when its supported fixed version is identified; the supplied evidence does not name one.", "vendor": "Canonical", "product": "Juju", "affected": [ { "affected_notes": [], "affected_ranges": [ ">= 4.0, < 4.0.16" ], "ecosystem": null, "fixed_versions": [ "4.0.16" ], "package_name": "juju", "purl": null } ], "cwes": null, "cvss_score": 7.1, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": null, "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": null, "t0_at": "2026-10-22T17:32:13.820000+00:00", "signals": { "trigger_signal": { "at": "2026-10-22T17:32:13.820000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-10-22T17:32:13.820000+00:00", "url": "https://github.com/advisories/GHSA-43hf-rrv4-hhf5" } } }
published 2026-10-22 19:22Z
last change 2026-10-22 20:01Z
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