CVE-2026-44788
CVE-2026-44788 is a medium-severity vulnerability in Adamhathcock Sharpcompress with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 5.9)
- EPSS exploit prediction: 0% (23rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-32013
- Weakness: CWE-22
- Affected product: Adamhathcock Sharpcompress
- Published:
- Last modified:
Description
SharpCompress is a fully managed C# library to deal with many compression types and formats. In 0.47.4 and earlier, a path traversal vulnerability in IArchive.WriteToDirectory() allows a malicious archive to create directories outside the intended extraction root. For TAR archives, this can be escalated to arbitrary file writes by chaining with a symlink entry, giving a full write primitive on the target filesystem subject to the permissions of the running process.
Frequently asked questions
- What is CVE-2026-44788?
- SharpCompress is a fully managed C# library to deal with many compression types and formats. In 0.47.4 and earlier, a path traversal vulnerability in IArchive.WriteToDirectory() allows a malicious archive to create directories outside the intended extraction root. For TAR archives, this can be escalated to arbitrary file writes by chaining with a symlink entry, giving a full write primitive on the target filesystem subject to the permissions of the running process.
- How severe is CVE-2026-44788?
- CVE-2026-44788 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.
- Is CVE-2026-44788 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-44788?
- CVE-2026-44788 affects Adamhathcock Sharpcompress. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-44788?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-44788 have an EU (EUVD) identifier?
- Yes. CVE-2026-44788 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32013.
- When was CVE-2026-44788 published?
- CVE-2026-44788 was published on 2026-05-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:adamhathcock:sharpcompress:*:*:*:*:*:*:*:*
More vulnerabilities in Adamhathcock Sharpcompress
- CVE-2018-1002206 — Medium (CVSS 5.5): SharpCompress before 0.21.0 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a…
All CVEs affecting Adamhathcock Sharpcompress →
Other CWE-22 (Path Traversal) vulnerabilities
- CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
- CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
- CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
- CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
- CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
- CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…