CVE-2026-28518 json
OpenViking .ovpack Import ZIP Slip Path Traversal
published 2026-03-03 8 mo ago modified 2026-10-08 31 d ago also GHSA-rpqr-j937-6qr9 , PYSEC-2026-2856 , EUVD-2026-9296
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 10%
- public exploits
- 0
- none known
Summary
OpenViking versions 0.2.1 and prior, fixed in commit 46b3e76, contain a path traversal vulnerability in the .ovpack import handling that allows attackers to write files outside the intended import directory. Attackers can craft malicious ZIP archives with traversal sequences, absolute paths, or drive prefixes in member names to overwrite or create arbitrary files with the importing process privileges.
Patch / fix
- volcengine openviking 0.2.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/volcengine/OpenViking/issues/342 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.4 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | openviking | <=0.2.1 |
no fix listed |
Affected products
- Volcengine OpenViking
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/volcengine/OpenViking/commit/46b3e76e28b9b3eee73693720c9ec48820228b72
patch, web
-
vulncheck.com
/advisories/openviking-ovpack-import-zip-slip-path-traversal
third-party-advisory, web, patch
-
github.com
/volcengine/OpenViking/issues/342
issue-tracking, exploit, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-28518
advisory
-
github.com
/volcengine/OpenViking
package
-
pypi.org
/project/openviking
package
-
github.com
/advisories/GHSA-rpqr-j937-6qr9
advisory
Sources
- CVE List CVE-2026-28518
- GitHub Advisory GHSA-rpqr-j937-6qr9
- NVD CVE-2026-28518
- OSV PYSEC-2026-2856
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.