Transfer-Encoding not treated as hop-by-hop
Published Aug 10, 2022 · Updated Oct 23, 2026
Original summary
Normalized public record · Updated Oct 23, 2026
Transfer-Encoding not treated as hop-by-hop
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
Improper Input Validation vulnerability in handling the Transfer-Encoding header of Apache Traffic Server allows an attacker to poison the cache. This issue affects Apache Traffic Server 8.0.0 to 9.0.2.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- 10%
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- lists.apache.org ↗
- DSA-5206 ↗
- [debian-lts-announce] 20230405 [SECURITY] [DLA 3385-1] trafficserver security update ↗
Record history
Published Aug 10, 2022 · Last refreshed Oct 23, 2026