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CVE-2026-1837

A specially-crafted file can cause libjxl's decoder to write pixel data to uninitialized unallocated memory. Soon after that data from another uninitialized unallocated region is copied to pixel data. This can be done by requesting color transformation of grayscale images to another grayscale color space. Buffers allocated for 1-float-per-pixel are used as if they are allocated for 3-float-per-pixel. That happens only if LCMS2 is used as CMS engine. There is another CMS engine available (select
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f99a7d54586123e7b9ddc5034b0dbd5bdbb2a61687ddd691c5f79c18f5c25ff3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
3

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 8 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/3

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/4

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/2

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/6

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/1

{"defaultStatus":"unaffected","product":"libjxl","vendor":"Google","versions":[{"lessThanOrEqual":"0.11.1","status":"affected","version":"0.9","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/affected/0

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/5

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/0
cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/metrics/1/cvssV3_1
cwe · 2 assertions

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-805","description":"CWE-805","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

8 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"firefox","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"thunderbird","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"firefox","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"thunderbird","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"thunderbird","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/1
{"defaultStatus":"unaffected","product":"libjxl","vendor":"Google","versions":[{"lessThanOrEqual":"0.11.1","status":"affected","version":"0.9","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"firefox","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"firefox","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-805","description":"CWE-805","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-1837"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/references/0
{"name":"RHBZ#2438974","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2438974"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/1/references/1
{"url":"https://github.com/libjxl/libjxl/issues/4549"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/libjxl/libjxl/issues/4549"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /containers/adp/0/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1837.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9747ed330809ee28093ce28b9840ed0efd8526f89378104b7db2a7eeacea79b0 · sha256:ee7457f7f338b933… · /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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