HTTP::Body versions before 1.24_02 for Perl parse the trailer in quadratic time
CVSS score
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EPSS probability
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Risk score
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Published
1 d ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%55
Short explanation
Perl HTTP::Body versions before 1.24_02 parse trailers in quadratic time, leading to remote CPU exhaustion. S0
Attackers can exhaust CPU resources with a single request, causing denial of service. S0
What should be done?
- Update HTTP::Body to version 1.24_02 or later.
- Review the provided patch references and apply necessary fixes.
Chain of evidence and sources
HTTP::Body 1.24_02 öncesi sürümler ek bölümleri kare zaman karmaşıklığı ile ayrıştırmaktadır. S0
Uzaktan bir saldırgan tek bir istek ile CPU kaynaklarını tüketebilir. S0
HTTP::Body sürüm 1.25 ek bölümdeki satır boyutunu ve sayısını sınırlamaktadır. S0
Show the technical text from the sources
HTTP::Body versions before 1.24_02 for Perl parse the trailer in quadratic time. Everything after the last chunk in the same call to add() is parsed with HTTP::Headers, which takes time quadratic in the number of fields of one name. For example, it takes several seconds to parse 16 KiB of "a:" lines. A remote attackercan exhause the CPU with a single request. HTTP::Body version 1.25 limits the size and number of lines in the trailer.
CWE: CWE-770
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-2026-121006 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | CPANSec | HTTP-Body | View |
RED HAT CSAF/VEX: Product Impact Check
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 |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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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-2026-121006 is associated with the following CWEs:
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-2026-121006 weaknesses.
Official Sources and Advisories
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