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CVE Record

CVE-2020-28469: Regular Expression Denial of Service (ReDoS)

This affects the package glob-parent before 5.1.2. The enclosure regex used to check for strings ending in enclosure containing path separator.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-28469 is a denial-of-service issue in glob-parent before 5.1.2. A crafted path-like string can make an internal regular expression consume excessive processing time. The business impact is availability, not data theft or privilege escalation, based on the provided CVSS vector.

Executive priority

Treat this as a standard dependency remediation item, not an emergency, unless exposed services process user-controlled glob or path strings. Prioritize upgrade through normal patch cycles and confirm no vulnerable copy remains in deployed software.

Technical view

glob-parent used an enclosure-check regular expression that could be vulnerable to Regular Expression Denial of Service when processing strings ending in an enclosure containing a path separator. The source bundle identifies versions before 5.1.2 as affected and points to the 5.1.2 release as the fix.

Likely exposure

Exposure is most likely in Node.js dependency trees, or packaged WebJars variants, that include glob-parent before 5.1.2. Risk is higher where untrusted glob or path-like input can reach code using this library.

Exploitation context

The source bundle does not show CISA KEV listing or other evidence of active exploitation. The CVSS vector indicates remote, unauthenticated, low-complexity availability impact, but only low availability loss is scored.

Researcher notes

Evidence supports ReDoS in glob-parent before 5.1.2, with availability-only impact. No exploit-in-the-wild evidence is provided. Focus validation on dependency reachability and whether attacker-controlled path or glob strings can reach the vulnerable parsing path.

Mitigation direction

  • Upgrade glob-parent to version 5.1.2 or later.
  • Refresh lockfiles so transitive dependencies resolve to a fixed version.
  • Check npm and WebJars dependency paths for bundled vulnerable copies.
  • Limit untrusted glob or path-like input where upgrade is delayed.
  • Follow vendor advisories for products embedding this dependency.

Validation and detection

  • Search SBOMs and lockfiles for glob-parent versions below 5.1.2.
  • Run dependency scanning against npm and WebJars package inventories.
  • Confirm deployed artifacts use the updated resolved dependency.
  • Review public routes and APIs for untrusted glob or path processing.
  • Track whether vendor products cite CVE-2020-28469 in advisories.
Prepared
Confidence
high
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-28469 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2020-28469Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aglob-parentunspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.