Security readout for executives and security teams
Plain-English summary
A remote, unauthenticated attacker may abuse Apache CloudStack’s webhook delivery capability to make the server send unintended requests. Successful exploitation could expose sensitive information or enable unauthorized changes. Availability impact is not identified in the supplied CVSS assessment.
Executive priority
Treat as an urgent remediation item for affected CloudStack environments, especially those reachable from untrusted networks. Establish exposure immediately and schedule the vendor-recommended upgrade promptly. No supplied evidence confirms exploitation in the wild.
Technical view
CVE-2026-59085 is a CWE-918 server-side request forgery vulnerability in Apache CloudStack’s webhook module. The supplied CVSS 3.1 score is 9.1: network-accessible, low complexity, no privileges or user interaction required, with high confidentiality and integrity impact.
Likely exposure
Exposure exists where Apache CloudStack 4.20.0.0–4.20.3.0 or 4.21.0.0–4.22.1.0 is deployed and webhook delivery requests can reach the vulnerable module. The supplied sources do not establish how common such deployments are.
Exploitation context
The supplied record does not report active exploitation, and this CVE is not identified as being in KEV. Its unauthenticated network attack path, low complexity, and potential confidentiality and integrity impact nevertheless make prompt remediation important.
Researcher notes
The advisory identifies webhook delivery requests as the exploitation vector but supplies no deeper mechanics here. Avoid assuming specific reachable services or outcomes beyond the CVSS confidentiality and integrity impacts. Deployment configuration and network reachability should guide exposure assessment.
Mitigation direction
- Upgrade 4.20 deployments to 4.20.3.1 or later.
- Upgrade 4.21 or 4.22 deployments to 4.22.1.1 or later.
- Consult the Apache advisory for any updated operational guidance.
- Prioritize internet-reachable or otherwise untrusted-access CloudStack management environments.
Validation and detection
- Inventory Apache CloudStack versions across all environments.
- Identify systems running versions within either affected range.
- Confirm upgraded systems report 4.20.3.1, 4.22.1.1, or later.
- Determine whether webhook delivery requests can reach the module.
- Review vendor guidance for later corrections or clarifications.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-918: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-59085 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbcCVE reference, apache · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Server-Side Request Forgery
Server-Side Request Forgery represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.