{"id":"CVE-2020-26266","details":"In affected versions of TensorFlow under certain cases a saved model can trigger use of uninitialized values during code execution. This is caused by having tensor buffers be filled with the default value of the type but forgetting to default initialize the quantized floating point types in Eigen. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.","aliases":["BIT-tensorflow-2020-26266","GHSA-qhxx-j73r-qpm2","PYSEC-2020-254","PYSEC-2020-297","PYSEC-2020-332"],"modified":"2026-05-15T10:41:46.965403Z","published":"2020-12-10T23:15:12.647Z","related":["openSUSE-SU-2022:10014-1","openSUSE-SU-2024:12116-1"],"references":[{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/commit/ace0c15a22f7f054abcc1f53eabbcb0a1239a9e2"},{"type":"FIX","url":"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-qhxx-j73r-qpm2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tensorflow/tensorflow","events":[{"introduced":"0"},{"fixed":"3db52be7be81a87c623cdeb7f03d3767521c5246"},{"introduced":"64c3d382cadf7bbe8e7e99884bede8284ff67f56"},{"fixed":"cdf2c541c3dd3fb6d03cce4d23fc6c548bc9017c"},{"introduced":"e5bf8de410005de06a7ff5393fafdf832ef1d4ad"},{"fixed":"77f47d6ed6ca1f50b6f2c4919097e625d50398a9"},{"introduced":"2b96f3662bd776e277f86997659e61046b56c315"},{"fixed":"d745ff2a48cebf18e847e8b602a744e97e058946"},{"introduced":"b36436b087bd8e8701ef51718179037cccdfc26e"},{"fixed":"9edbe5075f79a4a95ed14a2be831f9b59e61f49d"},{"fixed":"ace0c15a22f7f054abcc1f53eabbcb0a1239a9e2"}],"database_specific":{"source":["CPE_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"1.15.5"},{"introduced":"2.0.0"},{"fixed":"2.0.4"},{"introduced":"2.1.0"},{"fixed":"2.1.3"},{"introduced":"2.2.0"},{"fixed":"2.2.2"},{"introduced":"2.3.0"},{"fixed":"2.3.2"}],"cpe":"cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*"}}],"versions":["v2.1.2","v2.0.3","v1.15.4","v2.2.1","v2.3.1","v2.2.0","v2.1.1","v2.3.0","v2.0.2","v1.15.3","v2.0.1","v2.1.0","v1.15.2","v1.15.0","v1.15.0-rc3","v2.0.0","v1.15.0-rc2","v1.15.0-rc1","v1.15.0-rc0","v1.12.1","v1.9.0-rc2","v1.6.0-rc1","v1.1.0-rc2","v1.1.0-rc1","0.6.0","0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-26266.json","vanir_signatures_modified":"2026-05-15T10:41:46Z","vanir_signatures":[{"digest":{"line_hashes":["231289252184868460530183455252448555701","91757656206247693469837762295996955821","66970839959035880307393909995951173698","11518239365843261293496394939609917096","242992934956458659375590923280164619168","206277749462441338750747845374400206475","86034811856627147695209182625229439334","301585017095876410194697264531438450888","207633293496491729828571013863742450776","106132110187779549802454677573216740439","198031268189036871478006492995747145398","35830025694834872425823996469298033687","214103932759733219701062748452444376","258797823279588062531381319958224446467","193686778271171616397672057532987456773","283270390044034441146718569701339457380","243696162080901553351425793210896891130","60562352571251926566214593113919123499","240740306320204458167942422132404988553","3000219045584667782366701494661908717"],"threshold":0.9},"deprecated":false,"signature_type":"Line","id":"CVE-2020-26266-f0f3d529","signature_version":"v1","target":{"file":"third_party/eigen3/unsupported/Eigen/CXX11/src/FixedPoint/FixedPointTypes.h"},"source":"https://github.com/tensorflow/tensorflow/commit/ace0c15a22f7f054abcc1f53eabbcb0a1239a9e2"}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"}]}