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CVE-2026-108082: Symfony: ReDoS in HeaderUtils::split() Reachable Through the Cache-Control Request Header

high Affects symfony/http-foundation, symfony/symfony. Feed 2026.10.29.3, updated 2026-10-29; published .

Symfony: ReDoS in HeaderUtils::split() Reachable Through the Cache-Control Request Header

Package
symfony/http-foundation Composer
Affected versions
>=6.0.1 and <6.4.46 or >=7.0.0 and <7.4.19 or >=8.0.0 and <8.1.7 or >=4.1.0 and <5.4.54 or >=5.4.1 and <5.4.54 or >=6.0.1 and <6.1.0 or >=6.1.0 and <6.2.0 or >=6.2.0 and <6.3.0 or >=6.3.0 and <6.4.0 or >=6.4.0 and <6.4.46 or >=7.0.0 and <7.1.0 or >=7.1.0 and <7.2.0 or >=7.2.0 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.19 or >=8.0.0 and <8.1.0 or >=8.1.0 and <8.1.7
Fixed in
6.4.46, 7.4.19, 8.1.7, 5.4.54
Severity
high
Exploitation
not on CISA KEV · EPSS 0% (41.4th percentile)
Published
2026-10-27
Source
osv.dev

References

Symfony: ReDoS in HeaderUtils::split() Reachable Through the Cache-Control Request Header

Package
symfony/symfony Composer
Affected versions
>=6.0.1 and <6.4.46 or >=7.0.0 and <7.4.19 or >=8.0.0 and <8.1.7 or >=4.1.0 and <5.4.54 or >=5.4.1 and <5.4.54 or >=6.0.1 and <6.1.0 or >=6.1.0 and <6.2.0 or >=6.2.0 and <6.3.0 or >=6.3.0 and <6.4.0 or >=6.4.0 and <6.4.46 or >=7.0.0 and <7.1.0 or >=7.1.0 and <7.2.0 or >=7.2.0 and <7.3.0 or >=7.3.0 and <7.4.0 or >=7.4.0 and <7.4.19 or >=8.0.0 and <8.1.0 or >=8.1.0 and <8.1.7
Fixed in
6.4.46, 7.4.19, 8.1.7, 5.4.54
Severity
high
Exploitation
not on CISA KEV · EPSS 0% (41.4th percentile)
Published
2026-10-27
Source
osv.dev

References

CWE-1333
NVD recordsymfony/http-foundation advisoriessymfony/symfony advisories

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