CVE-2026-33671

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-03-25. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-16436 (ENISA EUVD) · GHSA-c2c7-rcm5-vvqj (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Picomatch is a glob matcher written JavaScript. Versions prior to 4.0.4, 3.0.2, and 2.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) when processing crafted extglob patterns. Certain patterns using extglob quantifiers such as +() and *(), especially when combined with overlapping alternatives or nested extglobs, are compiled into regular expressions that can exhibit catastrophic backtracking on non-matching input. Applications are impacted when they allow untrusted users to supply glob patterns that are passed to picomatch for compilation or matching. In those cases, an attacker can cause excessive CPU consumption and block the Node.js event loop, resulting in a denial of service. Applications that only use trusted, developer-controlled glob patterns are much less likely to be exposed in a security-relevant way. This issue is fixed in picomatch 4.0.4, 3.0.2 and 2.3.2. Users should upgrade to one of these versions or later, depending on their supported release line. If upgrading is not immediately possible, avoid passing untrusted glob patterns to picomatch. Possible mitigations include disabling extglob support for untrusted patterns by using noextglob: true, rejecting or sanitizing patterns containing nested extglobs or extglob quantifiers such as +() and *(), enforcing strict allowlists for accepted pattern syntax, running matching in an isolated worker or separate process with time and resource limits, and applying application-level request throttling and input validation for any endpoint that accepts glob patterns.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 26, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Aug 2, 2026
Patch available. Sources: github, github_commit.
GitHub advisoryMentions a patch (unverified)

ReDoS via Extglob Quantifiers in picomatch · Advisory · micromatch/picomatch · GitHub

https://github.com/micromatch/picomatch/security/advisories/GHSA-c2c7-rcm5-vvqj
GitHub commit Patch Available

commit 5eceecd27543 (micromatch/picomatch)

Patch available: micromatch/picomatch 4.0.4 (contains commit 5eceecd27543)

https://github.com/micromatch/picomatch/commit/5eceecd27543b8e056b9307d69e105ea03618a7d

Patch Availability(7)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhceph/rhceph-9-rhel10:17908435272026-10-21redhat
redhatodf4/rook-ceph-rhel9-operator:17870615542026-08-19redhat
redhatodf4/rook-ceph-rhel9-operator:17867068802026-08-18redhat
redhatcluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:17828399962026-07-01redhat
npmpicomatch @ 4.0.4 (fixes >= 4.0.0, < 4.0.4)—ghsa
npmpicomatch @ 3.0.2 (fixes >= 3.0.0, < 3.0.2)—ghsa
npmpicomatch @ 2.3.2 (fixes < 2.3.2)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
node-anymatch3.1.1+~2.2.2-1 ... 3.1.3+~cs8.0.6-1 (7 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-anymatch3.1.3+~cs4.6.1-2, 3.1.3+~cs8.0.5-1, 3.1.3+~cs8.0.6-1
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-anymatch3.1.3+~cs4.6.1-2, 3.1.3+~cs8.0.5-1, 3.1.3+~cs8.0.6-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-anymatch3.1.3+~cs4.6.1-2, 3.1.3+~cs8.0.5-1
  • every version up to 3.1.3+~cs8.0.6-1: fixed in 3.1.3+~cs8.0.6-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
picomatch—
  • 4.0.0 up to 4.0.4: fixed in 4.0.4
  • 3.0.0 up to 3.0.2: fixed in 3.0.2
  • every version up to 2.3.2: fixed in 2.3.2
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 45× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 97 of 131 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 34 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-11-01 07:53 UTCEG score recompute
  3. 2026-11-01 07:53 UTCGHSA enrichmentGHSA-c2c7-rcm5-vvqj · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-10-31 06:16 UTCEG score recompute
  6. 2026-10-31 06:16 UTCVendor advisory
  7. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-10-25 14:34 UTCEG score recompute
  14. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-24 11:02 UTCEG score recompute
  16. 2026-10-24 11:02 UTCVendor advisory
  17. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  22. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-10-18 03:46 UTCEG score recompute
  24. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  25. 2026-10-17 15:43 UTCEG score recompute
Show 72 more
  1. 2026-10-17 15:43 UTCVendor advisory
  2. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-10-12 16:13 UTCEG score recompute
  8. 2026-10-11 19:55 UTCEG score recompute
  9. 2026-10-11 17:08 UTCEG score recompute
  10. 2026-10-11 14:35 UTCEG score recompute
  11. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-10-11 04:31 UTCOSV refresh
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  18. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  26. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  27. 2026-09-21 16:49 UTCOSV refresh
  28. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  29. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  30. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  31. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  32. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  33. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  34. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  35. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  36. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  37. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  38. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  39. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  40. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  41. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  42. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  43. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  44. 2026-09-02 13:26 UTCOSV refresh
  45. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  46. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  47. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  48. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  49. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  50. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  51. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  52. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  53. 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  54. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  55. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  56. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  57. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  58. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  59. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  60. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  61. 2026-08-16 10:05 UTCEG score recompute
  62. 2026-08-16 10:05 UTCVendor advisory
  63. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  64. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  65. 2026-08-14 19:26 UTCVendor advisory
  66. 2026-08-14 06:23 UTCEG score recompute
  67. 2026-08-14 06:23 UTCVendor advisory
  68. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  69. 2026-08-12 20:40 UTCEG score recompute
  70. 2026-08-12 20:40 UTCVendor advisory
  71. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  72. 2026-08-11 20:48 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-33671?
CVE-2026-33671 is a high-severity vulnerability; its CVE record was published on March 26, 2026. Picomatch is a glob matcher written JavaScript. Versions prior to 4.0.4, 3.0.2, and 2.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) when processing crafted extglob patterns. Certain patterns using extglob quantifiers such as +() and *(), especially when combined with…
When was the CVE record for CVE-2026-33671 published?
The CVE record for CVE-2026-33671 was published on March 26, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2026-33671 actively exploited?
CVE-2026-33671 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-33671?
CVE-2026-33671 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-33671?
A fix for CVE-2026-33671 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-33671 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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