CVE-2020-35901: actix actix-http Use After Free
Modified
AliasesGHSA-v3j6-xf77-8r9cRUSTSEC-2020-0048
Published 31-12-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-35901 is a high (CVSS 7.5) Use After Free vulnerability in actix actix-http. EPSS estimates a 1.42% chance of exploitation in the next 30 days, higher than 72.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.42%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference
Timeline
- 31-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · Crates.ioEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.42%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 1.41% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (rustsec.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Actix1 product
- actix-http≤ 1.0.1
Crates.Io1 product
- actix-http< 2.0.0 | ≥ 0.0.0-0, < 2.0.0-alpha.1
2 vendors · 2 products
References
5 links- rustsec.org/advisories/RUSTSEC-2020-0048.htmlX Refsource MISCWEBAdvisoryExploitPatchThird Party Advisory
- github.com/actix/actix-webPACKAGE
- crates.io/crates/actix-httpPACKAGE