CVE Explorer
CVE-2026-10303
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 f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"getssl","repo":"https://github.com/srvrco/getssl","vendor":"ServerCo","versions":[{"lessThanOrEqual":"2.49","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-73","description":"CWE-73 External control of file name or path","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"tags":["mitigation"],"url":"https://github.com/srvrco/getssl/pull/896"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/references/0
{"tags":["release-notes"],"url":"https://github.com/srvrco/getssl/releases/tag/v2.50"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/references/4
{"tags":["related"],"url":"https://remyhax.xyz/posts/reproducing-lawful-tls-wiretapping/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/references/1
{"tags":["related"],"url":"https://www.cve.org/CVERecord?id=CVE-2023-38198"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/references/2
{"tags":["third-party-advisory"],"url":"https://www.runzero.com/advisories/serverco-getssl-acme-cmd-injection-cve-2026-10303/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b09a510ecc3e024f7a6eb10dfeb5bf682d09746892ba1c812beeabce53499b32 · sha256:8e6f69aaabaea275… · /containers/cna/references/3
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.