CVE Explorer

CVE-2026-55798

Pillow is a Python imaging library. Prior to 12.3.0, WindowsViewer.get_command() constructed a cmd.exe shell command by directly embedding a file path into an f-string without escaping and passed the result to subprocess.Popen(..., shell=True), allowing shell metacharacters in the file path to inject arbitrary cmd.exe commands. This issue is fixed in version 12.3.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bb9223d735c10f9011d700ee328ad028ea8403b570f78bf6d6708905348c4093

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"Pillow","vendor":"python-pillow","versions":[{"status":"affected","version":"< 12.3.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions

{"name":"https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/references/4

{"name":"https://github.com/python-pillow/Pillow/commit/8404ea5fe5df40fc34aa1e51403dd6fce0778b8a","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/commit/8404ea5fe5df40fc34aa1e51403dd6fce0778b8a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/references/1

{"name":"https://github.com/python-pillow/Pillow/commit/88194166691b7b603529b8b036ab3ab9cedd2de4","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/commit/88194166691b7b603529b8b036ab3ab9cedd2de4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/references/2

{"name":"https://github.com/python-pillow/Pillow/commit/b0e06caa64c1405aa3da0bb1d2bd9a77ca22de7f","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/commit/b0e06caa64c1405aa3da0bb1d2bd9a77ca22de7f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/references/3

{"name":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-4x4j-2g7c-83w6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-4x4j-2g7c-83w6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/cna/references/0

{"tags":["exploit"],"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-4x4j-2g7c-83w6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56c811a9be55f4d7989c8e4e03f70856d3ead76e566b51be1084d0e618aef88d · sha256:59c319cbd4650f7b… · /containers/adp/0/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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