Actix WebApplication · Actix

CVE-2018-25025

CRITICAL · 9.8 CVSS v3.1 Published 2021-12-27
Fix available
A fix is available. Upgrade to 0.7.15 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in the actix-web crate before 0.7.15 for Rust. It can unsoundly extend the lifetime of a string, leading to memory corruption.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A memory safety vulnerability in the actix-web Rust web framework allows unsound extension of string lifetimes, potentially causing use-after-free conditions and memory corruption. This is a Rust-specific safety violation where references outlive their referent.

MitigationUpgrade actix-web crate to version 0.7.15 or later to resolve the lifetime soundness issue.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Actix WebApplication
Affected:< 0.7.15

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate the actix-web crate in your project dependencies
    Check your Cargo.lock file for the actix-web entry, or run `cargo tree -p actix-web` to see the installed version
    Affected if The version listed is less than 0.7.15
  2. Identify all projects using actix-web
    Search for Cargo.toml files containing `actix-web` under [dependencies] or [dev-dependencies] across your codebase
    Affected if Any project declares actix-web version < 0.7.15
  3. Check runtime-installed crate version
    If actix-web is a runtime dependency, run `cargo pkgid actix-web` in the project directory to retrieve the exact version
    Affected if The returned version is < 0.7.15
  4. Inspect string handling usage in actix-web code
    Review your application code for usage of actix-web's string types, particularly in request/response handling paths where external strings are stored or extended
    Affected if Your code stores or extends string lifetimes from external input through actix-web APIs

You are affected if any actix-web dependency in your environment resolves to a version earlier than 0.7.15 and your application processes external strings through actix-web handlers.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 0.7.15 or later
Fixed in 0.7.15
Interim mitigation

Upgrade actix-web crate to version 0.7.15 or later to resolve the lifetime soundness issue.

Recommended fix High confidence

actix-web >= 0.7.15

  1. Locate your Cargo.toml file and identify the actix-web dependency
  2. Update the actix-web version requirement to 0.7.15 or later (e.g., actix-web = "0.7.15")
  3. Run `cargo update actix-web` or `cargo build` to fetch the fixed version
  4. Test your application thoroughly to ensure compatibility with the updated version
Caveat Minor version upgrades in actix-web may include API changes; review the changelog between your current version and 0.7.15

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Actix Web Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,720
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-25025 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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