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No exploitation reportedFix available

CVE-2020-35901

No exploitation reported by the sources we read.

  • Published2020-12-31
  • Fixed in2.0.0-alpha.1 · 2.0.0
  • WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in the actix-http crate before 2.0.0-alpha.1 for Rust. There is a use-after-free in BodyStream.

Timeline

dates in UTC
  1. 2020-12-3109:15CVE publishedNVD

Versions per branch

OSV · NVD
actix-http
BranchAffectedFixed in
2.0≥ 0.0.0-0, < 2.0.0-alpha.12.0.0-alpha.1
2.0< 2.0.02.0.0
Actix actix-http
BranchAffectedFixed in
1.0≤ 1.0.1no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update actix-http to 2.0.0-alpha.1 · 2.0.0

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2020-12-31
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-v3j6-xf77-8r9c

Frequently asked questions

What is CVE-2020-35901?

An issue was discovered in the actix-http crate before 2.0.0-alpha.1 for Rust. There is a use-after-free in BodyStream.

Is CVE-2020-35901 actively exploited?

Active exploitation of CVE-2020-35901 has not been confirmed. Its EPSS score was 1.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-35901?

CVE-2020-35901 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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Sources for this record