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Vulnerability details: VCID-v3mu-95kt-ufc6
Vulnerability ID VCID-v3mu-95kt-ufc6
Aliases CVE-2026-33176
GHSA-2j26-frm8-cmj9
Summary Rails: Active Support: Active Support: Denial of Service via large scientific notation strings
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-770 Allocation of Resources Without Limits or Throttling
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33176.json
epss 0.0003 https://api.first.org/data/v1/epss?cve=CVE-2026-33176
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv4 6.6 https://github.com/rails/rails
generic_textual MODERATE https://github.com/rails/rails
cvssv4 6.6 https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
generic_textual MODERATE https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
ssvc Track https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
cvssv4 6.6 https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
generic_textual MODERATE https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
ssvc Track https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
cvssv4 6.6 https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
generic_textual MODERATE https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
ssvc Track https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
cvssv4 6.6 https://github.com/rails/rails/releases/tag/v7.2.3.1
generic_textual MODERATE https://github.com/rails/rails/releases/tag/v7.2.3.1
ssvc Track https://github.com/rails/rails/releases/tag/v7.2.3.1
cvssv4 6.6 https://github.com/rails/rails/releases/tag/v8.0.4.1
generic_textual MODERATE https://github.com/rails/rails/releases/tag/v8.0.4.1
ssvc Track https://github.com/rails/rails/releases/tag/v8.0.4.1
cvssv4 6.6 https://github.com/rails/rails/releases/tag/v8.1.2.1
generic_textual MODERATE https://github.com/rails/rails/releases/tag/v8.1.2.1
ssvc Track https://github.com/rails/rails/releases/tag/v8.1.2.1
cvssv4 6.6 https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
generic_textual MODERATE https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
ssvc Track https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
cvssv4 6.6 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2026-33176.yml
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2026-33176.yml
cvssv4 6.6 https://nvd.nist.gov/vuln/detail/CVE-2026-33176
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-33176
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33176.json
https://api.first.org/data/v1/epss?cve=CVE-2026-33176
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33176
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/rails/rails
https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
https://github.com/rails/rails/releases/tag/v7.2.3.1
https://github.com/rails/rails/releases/tag/v8.0.4.1
https://github.com/rails/rails/releases/tag/v8.1.2.1
https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2026-33176.yml
https://nvd.nist.gov/vuln/detail/CVE-2026-33176
1132035 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1132035
2450551 https://bugzilla.redhat.com/show_bug.cgi?id=2450551
RHSA-2026:14835 https://access.redhat.com/errata/RHSA-2026:14835
RHSA-2026:14873 https://access.redhat.com/errata/RHSA-2026:14873
RHSA-2026:14874 https://access.redhat.com/errata/RHSA-2026:14874
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33176.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

changed

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none

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none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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required

unchanged

changed

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Vector: 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 Found at https://github.com/rails/rails
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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Vector: 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 Found at https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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none

present

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passive

active

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
Vector: 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 Found at https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

active

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
Vector: 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 Found at https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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present

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passive

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
Vector: 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 Found at https://github.com/rails/rails/releases/tag/v7.2.3.1
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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passive

active

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/releases/tag/v7.2.3.1
Vector: 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 Found at https://github.com/rails/rails/releases/tag/v8.0.4.1
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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passive

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/releases/tag/v8.0.4.1
Vector: 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 Found at https://github.com/rails/rails/releases/tag/v8.1.2.1
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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passive

active

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none

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/releases/tag/v8.1.2.1
Vector: 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 Found at https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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passive

active

high

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Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-24T18:42:42Z/ Found at https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9
Vector: 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 Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2026-33176.yml
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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passive

active

high

low

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Vector: 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 Found at https://nvd.nist.gov/vuln/detail/CVE-2026-33176
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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none

present

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passive

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Exploit Prediction Scoring System (EPSS)
Percentile 0.09295
EPSS Score 0.0003
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T08:42:37.905222+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33176.json 38.6.0