CVE-2026-27822: Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover

CVE-2026-27822 · Severity: low · CVSS 3.1 · Published 2026-02-25

Rust has Critical Stored XSS in Preview Modal, leading to Administrative Account Takeover

Technologies: rustfs (crates.io). Vendors: crates.io.

Quick answers

Is CVE-2026-27822 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-27822 being exploited in the wild.
How severe is CVE-2026-27822?
Low severity, with a CVSS score of 3.1, published 25 February 2026.
Which products and versions are affected?
rustfs (crates.io) SEMVER:introduced=0,fixed=1.0.0-alpha.83.
Is there a fix for CVE-2026-27822?
Yes. rustfs (crates.io): upgrade to 1.0.0-alpha.83 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-27822?
Check whether you run rustfs (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • rustfs (crates.io): upgrade to 1.0.0-alpha.83 or later
    cargo update -p rustfs

Affected products

  • rustfs (crates.io) SEMVER:introduced=0,fixed=1.0.0-alpha.83

Identifiers

  • CVE-2026-27822
  • GHSA-v9fg-3cr2-277j

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