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CVE-2026-32875

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.10 through 5.11.0 are vulnerable to buffer overflow or infinite loop through large indent handling. ujson.dumps() crashes the Python interpreter (segmentation fault) when the product of the indent parameter and the nested depth of the input exceeds INT32_MAX. It can also get stuck in an infinite loop if the indent is a large negative number. Both are caused by an integer overflow/underflow wh
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2276fc5c13f6e7e2abfc7d4e94e3461aee9f554b58dfb3ef2a475bf4b9776fd6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 4 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openstack:17.1"],"defaultStatus":"unaffected","packageName":"python-ujson","product":"Red Hat OpenStack Platform 17.1","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openstack:18.0"],"defaultStatus":"unaffected","packageName":"python-ujson","product":"Red Hat OpenStack Platform 18.0","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openstack:16.2"],"defaultStatus":"unaffected","packageName":"python-ujson","product":"Red Hat OpenStack Platform 16.2","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/affected/0

{"product":"ultrajson","vendor":"ultrajson","versions":[{"status":"affected","version":">= 5.1.0, < 5.12.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/affected/0
cwe · 4 assertions

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-835","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

4 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openstack:17.1"],"defaultStatus":"unaffected","packageName":"python-ujson","product":"Red Hat OpenStack Platform 17.1","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openstack:18.0"],"defaultStatus":"unaffected","packageName":"python-ujson","product":"Red Hat OpenStack Platform 18.0","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openstack:16.2"],"defaultStatus":"unaffected","packageName":"python-ujson","product":"Red Hat OpenStack Platform 16.2","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/affected/0
{"product":"ultrajson","vendor":"ultrajson","versions":[{"status":"affected","version":">= 5.1.0, < 5.12.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

4 source assertions
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-835","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/problemTypes/2/descriptions/0

Source references

6 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-32875"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/references/0
{"name":"RHBZ#2449400","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2449400"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/adp/1/references/1
{"name":"https://github.com/ultrajson/ultrajson/commit/486bd4553dc471a1de11613bc7347a6b318e37ea","tags":["x_refsource_MISC"],"url":"https://github.com/ultrajson/ultrajson/commit/486bd4553dc471a1de11613bc7347a6b318e37ea"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/references/2
{"name":"https://github.com/ultrajson/ultrajson/issues/700","tags":["x_refsource_MISC"],"url":"https://github.com/ultrajson/ultrajson/issues/700"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/references/1
{"name":"https://github.com/ultrajson/ultrajson/security/advisories/GHSA-c8rr-9gxc-jprv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ultrajson/ultrajson/security/advisories/GHSA-c8rr-9gxc-jprv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32875.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:11378ad7624b35e9ffe0cd4c2096fb465c34cca4739f2ebc202afaf9a2fe8658 · sha256:996e29e7ee1ff3a6… · /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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