CVE-2021-29933 json
Double free in insert_many
published 2021-01-26 5 y ago modified 2026-06-17 4 mo ago also GHSA-29hg-r7c7-54fr , RUSTSEC-2021-0042 , EUVD-2021-1508
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 67%
- public exploits
- 0
- none known
Summary
An issue was discovered in the insert_many crate through 2021-01-26 for Rust. Elements may be dropped twice if a .next() method panics.
Exploit prediction
1.18% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- rustsec.org https://rustsec.org/advisories/RUSTSEC-2021-0042.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | insert_many | <=0.1.1 >=0.0.0-0 |
no fix listed |
Classification
- Weakness
-
- CWE-415 Double Free
References
-
rustsec.org
/advisories/RUSTSEC-2021-0042.html
web, exploit, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-29933
advisory
-
github.com
/rphmeier/insert_many/issues/1
web, report
-
github.com
/rphmeier/insert_many
package
-
crates.io
/crates/insert_many
package
Sources
- CVE List CVE-2021-29933
- GitHub Advisory GHSA-29hg-r7c7-54fr
- NVD CVE-2021-29933
- OSV RUSTSEC-2021-0042
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.