Security readout for executives and security teams
Plain-English summary
RustFS Console versions 0.1.7 through before 0.1.10 can store malicious content disguised as a PDF and later execute it when previewed by an administrator. The reported impact includes exposure of administrator access keys, secret keys, and session tokens, creating a credible account-takeover risk.
Executive priority
Treat this as urgent for any affected RustFS Console deployment. The combination of critical severity, administrator credential exposure, and a fixed release means teams should prioritize upgrade and credential review over routine patch timing.
Technical view
The issue is stored cross-site scripting in the extension-based PDF preview path, involving preview-modal.tsx and pdf-viewer.tsx. HTML content uploaded with a .pdf extension can be rendered in the management console. The CVE lists CWE-79, CVSS 9.0, low attack complexity, required user interaction, and changed scope.
Likely exposure
Exposure is limited to deployments running RustFS Console versions greater than or equal to 0.1.7 and lower than 0.1.10. Risk is highest where untrusted or lower-privileged users can upload objects later previewed by administrators in the console.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires a low-privileged actor to place crafted content and an administrator to preview it. The business risk is credential exposure inside the management console.
Researcher notes
This is described as a regression of CVE-2026-27822. The available evidence identifies the vulnerable preview components, affected version range, CVSS vector, and fixed release, but does not provide confirmed exploitation in the wild.
Mitigation direction
- Upgrade RustFS Console to version 0.1.10 or later.
- Restrict console access to trusted administrators until upgraded.
- Limit object upload privileges where untrusted users can influence administrator previews.
- Rotate exposed administrator credentials if suspicious previews occurred.
- Check vendor advisory and release notes for any follow-up guidance.
Validation and detection
- Inventory all RustFS Console deployments and record exact versions.
- Confirm no deployment runs versions 0.1.7 through below 0.1.10.
- Review object upload and preview activity around administrator sessions.
- Check for unexpected HTML-like content uploaded with .pdf extensions.
- Verify the deployed build includes the referenced 0.1.10 fix.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2026-62378 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 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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:L/UI:R/S:C/C:H/I:H/A:H2.36GitHub_MVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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://github.com/rustfs/rustfs/security/advisories/GHSA-7gcx-wg4x-q9x6CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/rustfs/console/commit/49630dc140e6818aaee8879ade038a129838a2f2CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/rustfs/console/releases/tag/v0.1.10CVE reference, GitHub_M · x_refsource_MISC
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.