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CVE-2026-33176

Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Support number helpers accept strings containing scientific notation (e.g. `1e10000`), which `BigDecimal` expands into extremely large decimal representations. This can cause excessive memory allocation and CPU consumption when the expanded number is formatted, possibly resulting in a DoS vulnerability. Versions 8.1.2.1, 8.0.4.1, an
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:30129d92bedd0ab3fbcc6d580c72babb21f334d4e5f88a54e71217d0202e9436
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"activesupport","vendor":"rails","versions":[{"status":"affected","version":">= 8.1.0.beta1, < 8.1.2.1"},{"status":"affected","version":">= 8.0.0.beta1, < 8.0.4.1"},{"status":"affected","version":"< 7.2.3.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.6,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-400","description":"CWE-400: Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"name":"https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb","tags":["x_refsource_MISC"],"url":"https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/references/1
{"name":"https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a","tags":["x_refsource_MISC"],"url":"https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/references/2
{"name":"https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856","tags":["x_refsource_MISC"],"url":"https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/references/3
{"name":"https://github.com/rails/rails/releases/tag/v7.2.3.1","tags":["x_refsource_MISC"],"url":"https://github.com/rails/rails/releases/tag/v7.2.3.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/references/4
{"name":"https://github.com/rails/rails/releases/tag/v8.0.4.1","tags":["x_refsource_MISC"],"url":"https://github.com/rails/rails/releases/tag/v8.0.4.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/references/5
{"name":"https://github.com/rails/rails/releases/tag/v8.1.2.1","tags":["x_refsource_MISC"],"url":"https://github.com/rails/rails/releases/tag/v8.1.2.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/references/6
{"name":"https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:953b5e07e34a9a00e3531089cefc79c70a469e8ed49aa7bf96fb670e35d4d0d4 · sha256:5fe231cfe8134122… · /containers/cna/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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