Link Following Affecting kibana-9.0-advanced package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-KIBANA90ADVANCED-19657083
- published10 Sept 2026
- disclosed24 Aug 2026
Introduced: 24 Aug 2026
NewCVE-2026-76845 (opens in a new tab)How to fix?
There is no fixed version for Minimos:latest kibana-9.0-advanced.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kibana-9.0-advanced package and not the kibana-9.0-advanced package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
adm-zip 0.5.9 through 0.6.0 follows symbolic links at the extraction destination. Utils.sanitize in util/utils.js enforces containment by comparing only the string form of an archive entry name against the resolved extraction root, and Utils.writeFileTo opens the computed destination with fs.openSync(path, "w", 0o666), which resolves symbolic links and carries neither O_NOFOLLOW nor a pre-write fs.lstatSync check. When a path component at the destination already exists as a symbolic link pointing outside the extraction root, extractAllTo, extractAllToAsync and extractEntryTo write the entry contents through that link and then chmod its target, placing attacker-controlled content in a file outside the root without any traversal sequence appearing in the archive. Reaching the write requires overwrite to be enabled, because the preceding fs.existsSync check also resolves the link and otherwise declines. An attacker able to create a symbolic link inside a shared, reused or predictable extraction directory, such as a temporary directory or a continuous integration workspace, can overwrite any file the extracting process is permitted to write.
References
- https://www.cve.org/CVERecord?id=CVE-2026-76845
- https://github.com/advisories/GHSA-vwc7-r8mq-g2x9
- https://osv.dev/vulnerability/MINI-r8j5-9m73-c934
- https://osv.dev/vulnerability/CVE-2026-76845
- https://github.com/cthackers/adm-zip
- https://github.com/cthackers/adm-zip/blob/v0.6.0/util/utils.js
- https://www.vulncheck.com/advisories/adm-zip-through-arbitrary-file-overwrite-via-symlink-following-on-extraction