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CVE-2026-34379

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, a misaligned memory write vulnerability exists in LossyDctDecoder_execute() in src/lib/OpenEXRCore/internal_dwa_decoder.h:749. When decoding a DWA or DWAB-compressed EXR file containing a FLOAT-type channel, the decoder performs an in-place HALF→FLOAT conversion by casting an unaligned uint8_t * row pointer
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:aa665cdc5b438ccbcd4b6508d694fcc27353de89563d158a01ef6016fc30d54e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 6 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/4

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unknown","packageName":"OpenEXR","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/2

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/1

{"product":"openexr","vendor":"AcademySoftwareFoundation","versions":[{"status":"affected","version":">= 3.2.0, < 3.2.7"},{"status":"affected","version":">= 3.3.0, < 3.3.9"},{"status":"affected","version":">= 3.4.0, < 3.4.9"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/affected/0

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/0
cwe · 4 assertions

{"cweId":"CWE-475","description":"Undefined Behavior for Input to API","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-704","description":"CWE-704: Incorrect Type Conversion or Cast","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-843","description":"CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

6 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"OpenEXR","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"OpenEXR","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unknown","packageName":"OpenEXR","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unknown","packageName":"OpenEXR","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/1
{"product":"openexr","vendor":"AcademySoftwareFoundation","versions":[{"status":"affected","version":">= 3.2.0, < 3.2.7"},{"status":"affected","version":">= 3.3.0, < 3.3.9"},{"status":"affected","version":">= 3.4.0, < 3.4.9"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"OpenEXR","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

4 source assertions
{"cweId":"CWE-475","description":"Undefined Behavior for Input to API","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-704","description":"CWE-704: Incorrect Type Conversion or Cast","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-843","description":"CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/problemTypes/2/descriptions/0

Source references

7 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-34379"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/references/0
{"name":"RHBZ#2455402","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2455402"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/adp/1/references/1
{"name":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.7","tags":["x_refsource_MISC"],"url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/references/1
{"name":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.9","tags":["x_refsource_MISC"],"url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/references/2
{"name":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.9","tags":["x_refsource_MISC"],"url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/references/3
{"name":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-w88v-vqhq-5p24","tags":["x_refsource_CONFIRM"],"url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-w88v-vqhq-5p24"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34379.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0db9ae331a140dd3c6051b1c6aed0bab2085180908c99cd26d58d082a665c60 · sha256:cc24b04361731234… · /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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