CVE-2026-10303
- Source
- https://cve.org/CVERecord?id=CVE-2026-10303
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10303.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-10303
- Published
- 2026-06-16T18:24:43Z
- Modified
- 2026-10-28T02:30:44Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- ServerCo getssl ACME shell script path injection
- Details
-
In ServerCo getssl version 2.49 and prior, the ACME challenge token returned to the client was not strictly validated against RFC 8555 before being used in challenge-file handling, allowing a maliciously crafted token to influence local path/filename usage during validation. An attacker who can supply ACME challenge responses to getssl (for example, a malicious or compromised CA endpoint, or an on-path adversary able to tamper with that response path) could exploit this to achieve unauthorized file write/path traversal effects, usually with elevated privileges, ultimately allowing for remote command injection. This issue appears related in spirit to CVE-2023-38198, and is an instance of CWE-73, "External control of file name or path." Other ACME shell script handlers may be affected by similar issues.
- Database specific
{ "cna_assigner": "runZero", "cwe_ids": [ "CWE-73" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10303.json" }- References
-
- https://remyhax.xyz/posts/reproducing-lawful-tls-wiretapping/
- https://www.cve.org/CVERecord?id=CVE-2023-38198
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10303.json
- https://github.com/srvrco/getssl/releases/tag/v2.50
- https://nvd.nist.gov/vuln/detail/CVE-2026-10303
- https://www.runzero.com/advisories/serverco-getssl-acme-cmd-injection-cve-2026-10303/
- https://github.com/srvrco/getssl/pull/896
- https://github.com/srvrco/getssl
Affected packages
Git / github.com/srvrco/getssl
Affected ranges
- Type
- GIT
- Repo
- https://github.com/srvrco/getssl
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "last_affected": "2.49" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "original_tag": "v2.50", "range": [ { "fixed": "b0b856df1eb1265ce56785eb1d2af880669b8788" } ], "source": "REFERENCES_TAG" } ] }