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CVE-2026-45304 Symfony: YAML Parser Exponential Memory Allocation via Recursive Collection-Alias Expansion ("Billion Laughs")
| Reporter | Title | Published | Views | Family All 26 |
|---|---|---|---|---|
 | CVE-2026-45304 | 14 Jul 202618:48 | – | attackerkb |
 | CVE-2026-45304 vulnerabilities | 8 Jun 202619:18 | – | cgr |
 | CVE-2026-45304 | 20 May 202611:01 | – | circl |
 | CVE-2026-45304 | 14 Jul 202618:48 | – | cve |
 | [SECURITY] [DSA 6312-1] symfony security update | 31 May 202612:26 | – | debian |
| [SECURITY] [DSA 6317-1] symfony security update | 1 Jun 202618:04 | – | debian |
 | CVE-2026-45304 | 1 Jan 197000:00 | – | debiancve |
 | Debian dsa-6312 : php-symfony - security update | 1 Jun 202600:00 | – | nessus |
| Debian dsa-6317 : php-symfony - security update | 2 Jun 202600:00 | – | nessus |
| Linux Distros Unpatched Vulnerability : CVE-2026-45304 | 21 May 202600:00 | – | nessus |
10
[
{
"vendor": "symfony",
"product": "symfony",
"versions": [
{
"version": "< 5.4.52",
"status": "affected"
},
{
"version": ">= 6.0.0-BETA1, < 6.4.40",
"status": "affected"
},
{
"version": ">= 7.0.0-BETA1, < 7.4.12",
"status": "affected"
},
{
"version": ">= 8.0.0-BETA1, < 8.0.12",
"status": "affected"
}
]
},
{
"vendor": "symfony",
"product": "yaml",
"versions": [
{
"version": "< 5.4.52",
"status": "affected"
},
{
"version": ">= 6.0.0-BETA1, < 6.4.40",
"status": "affected"
},
{
"version": ">= 7.0.0-BETA1, < 7.4.12",
"status": "affected"
},
{
"version": ">= 8.0.0-BETA1, < 8.0.12",
"status": "affected"
}
]
}
]Data
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14 Jul 2026 18:48Current
CVSS 48.7
EPSS0.00076