CVE-2026-115508

Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields

CVSS score

7.1

EPSS probability

—

Risk score

0.7

Published

3 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach AI Explanation

Verified against sources

Crawl4AI /crawl Regex Fields ReDoS Vulnerability

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

Crawl4AI 0.7.0 through 0.9.5 contains an inefficient regular expression complexity vulnerability in the Docker API server allowing authenticated API clients to supply unbounded regular expressions in /crawl request bodies.

Why does it matter?

This vulnerability allows attackers to freeze the entire server including /health, threatening service availability.

What should be done?

Follow vendor advisories
Update affected versions

Chain of evidence and sources2 verified claims

Crawl4AI 0.7.0 ile 0.9.5 sürümleri arasında verimsiz düzenli ifade karmaşıklığı zafiyeti bulunmaktadır.

S0 · daybreach-canonical S1 · cvelist

Saldırganlar felaket niteliğinde geri izleme desenleri göndererek sunucuyu dondurabilir.

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

Crawl4AI 0.7.0 before 0.9.5 contains an inefficient regular expression complexity vulnerability in the Docker API server that allows authenticated API clients to supply unbounded regular expressions in /crawl request bodies. Attackers can submit catastrophic-backtracking patterns via RegexExtractionStrategy.custom, RegexChunking.patterns or JsonCss, JsonXPath and JsonLxml schema regex fields against a crafted page to freeze the entire server, including /health.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CWE: CWE-1333

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-115508 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	unclecode	crawl4ai	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
7.1	CVSS V40	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD
7.1	CVSS V4_0	HIGH	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CVE CNA
6.5	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD
6.5	CVSS V3_1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-115508 is associated with the following CWEs:

CWE-1333: Common Weakness Enumeration Entry CWE-1333

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-115508 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

GitHub Security Advisory (GHSA-j843-8p47-rhxp)vendor-advisory https://github.com/unclecode/crawl4ai/commit/8aea2006e2cdb96a185e50b20633fc323dff6429patch crawl4ai v0.9.5 Release Notesvendor-advisory https://github.com/unclecode/crawl4aivendor-advisory VulnCheck Advisory: Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fieldsvendor-advisory

CVSS Vector Radar Chart

7.1 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

unclecode

Weakness Type (CWE & CAPEC)

CWE-1333

Similar Vulnerabilities

10.0

CVE-2026-26216Crawl4AI < 0.8.0 Docker API Unauthenticated Remote Code Execution via Hooks Parameter

Vendorunclecode Productcrawl4ai+2 etkilenen

Patch status unknown Public Exploits:1EPSS %68 mo ago

9.2

CVE-2026-26217Crawl4AI < 0.8.0 Docker API Local File Inclusion via file URL Handling

Vendorunclecode Productcrawl4ai+2 etkilenen

Patch status unknown Public Exploits:1EPSS %28 mo ago

8.7

CVE-2026-91941Crawl4AI before 0.9.3 Denial of Service via PDFContentScrapingStrategy

Vendorunclecode Productcrawl4ai

Patch status unknownEPSS %01 mo ago

8.7

CVE-2026-91940crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategy

Vendorunclecode Productcrawl4ai

Patch status unknown Public Exploits:1EPSS %01 mo ago

8.3

CVE-2026-91943Crawl4AI before 0.9.3 SSRF via PDFContentScrapingStrategy

Vendorunclecode Productcrawl4ai

Patch status unknownEPSS %01 mo ago

8.6

CVE-2026-109237Crawl4AI 0.9.0 before 0.9.4 Untrusted Config Gate Bypass Leaks Environment Variables

Vendorunclecode Productcrawl4ai

Patch status unknownEPSS %010 d ago

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free key Documentation

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-115508"

Crawl4AI 0.7.0 before 0.9.5 ReDoS via /crawl Regex Fields

Impact on My Inventory

Vulnerability description

DayBreach AI Explanation

Short explanation

What should be done?

IMPACT: Affected Products and Software

Affected Products

RED HAT CSAF/VEX: Product Impact Check

SCORING: CVSS from Multiple Sources

CVSS Scores

Patch and Remediation Guide

Solution & Remediation Advisory

Public exploit and active exploitation status

Verified exploit intelligence

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

Common Attack Pattern Enumeration and Classification (CAPEC)

Attack Vector and Accessibility

Official Sources and Advisories

CVSS Vector Radar Chart

Vulnerability Scoring Details

Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

Get this vulnerability through the API

DayBreach

Glossary & Reference

Directories & Feeds

RSS & Integration