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CVE-2026-33371

An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. An XML External Entity (XXE) vulnerability exists in the Zimbra Exchange Web Services (EWS) SOAP interface due to improper handling of XML input. An authenticated attacker can submit crafted XML data that is processed by an XML parser with external entity resolution enabled. Successful exploitation may allow disclosure of sensitive local files from the server.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:44e6b372c8bf01e8a905481e2e6480e5e87b485230e4cd85b8475c3456a6a7d2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-611","description":"CWE-611 Improper Restriction of XML External Entity Reference","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-611","description":"CWE-611 Improper Restriction of XML External Entity Reference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://wiki.zimbra.com/wiki/Security_Center"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/references/1
{"url":"https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/references/3
{"url":"https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/references/2
{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0d0f1d81d86a775f1ec0cd180f07a02cf6b6b7cf9f6d43b20f8a812ecbfa076a · sha256:93a52873c62b7abe… · /containers/cna/references/0

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.

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