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CVE-2026-27851

A flaw was found in Dovecot. When the safe filter is used with variable expansion, subsequent pipelines on the same string are incorrectly interpreted as safe, allowing unsafe data to be unescaped. This can enable SQL (Structured Query Language) or LDAP (Lightweight Directory Access Protocol) injection attacks when used in authentication, potentially leading to unauthorized access or information disclosure.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f88f531e15e5328adeaebd8bb0e183b6fdb4572490d0998b67f367a04f6568c3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 5 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"dovecot","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"dovecot","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/0

{"defaultStatus":"unaffected","modules":["core"],"product":"OX Dovecot Pro","vendor":"Open-Xchange GmbH","versions":[{"lessThanOrEqual":"3.1.4","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"2.4.3","status":"affected","version":"0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"dovecot","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"dovecot","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/1
cwe · 2 assertions

{"cweId":"CWE-89","description":"Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-235","description":"Improper Handling of Extra Parameters","lang":"en","type":"cwe"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

5 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"dovecot","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"dovecot","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/0
{"defaultStatus":"unaffected","modules":["core"],"product":"OX Dovecot Pro","vendor":"Open-Xchange GmbH","versions":[{"lessThanOrEqual":"3.1.4","status":"affected","version":"0","versionType":"semver"},{"lessThanOrEqual":"2.4.3","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"dovecot","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"dovecot","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/affected/1

Provider-owned CVSS observations

2 source assertions
{"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_v5cvss
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/metrics/1/cvssV3_1
{"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_v5cvss
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-89","description":"Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-235","description":"Improper Handling of Extra Parameters","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-27851"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/references/0
{"name":"RHBZ#2476471","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2476471"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/references/1
{"tags":["vendor-advisory"],"url":"https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27851.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:31fe224965ac58b8c058a5dc13ac8cd996323b5f18b4833fb895061aeede7897 · sha256:9a798b2c8546acb1… · /containers/adp/1/references/2

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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