CVE-2021-33896 json
Dino before 0.1.2 and 0.2.x before 0.2.1 allows Directory Traversal (only for creation of new files) via URI-encoded path separators.
published 2021-06-07 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20569
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
Dino before 0.1.2 and 0.2.x before 0.2.1 allows Directory Traversal (only for creation of new files) via URI-encoded path separators.
Patch / fix
- dino dino 0.1.2, 0.2.1
- dino-im Debian 14, Debian 13, Debian 12 0.2.0-3
debian advisories DEBIAN-CVE-2021-33896
- dino Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 0.2.1-r0
alpine advisories ALPINE-CVE-2021-33896
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- dino Arch Linux 0.2.1-1
arch linux advisories AVG-2043
- dino.im/security/cve-2021-33896/ advisory
- openwall.com/lists/oss-security/2021/06/07/2 advisory
Exploit prediction
1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
dino.im
/security/cve-2021-33896/
patch, vendor-advisory
-
openwall.com
/lists/oss-security/2021/06/07/2
mailing-list, patch, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/ODN4ZSTBYIW25DO3FNRK6FQRGSYGT57I/
vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/P55V3TVSVXREOJAJRXNUSBEUZFOU54V3/
vendor-advisory
-
dino.im
/blog/
vendor-advisory
Sources
- CVE List CVE-2021-33896
- NVD CVE-2021-33896
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.