CVE-2021-36221 (GCVE-0-2021-36221)
Vulnerability from cvelistv5 – Published: 2021-08-08 00:00 – Updated: 2024-08-04 00:54
VLAI
EPSS
VEX
Summary
Go before 1.15.15 and 1.16.x before 1.16.7 has a race condition that can lead to a net/http/httputil ReverseProxy panic upon an ErrAbortHandler abort.
Severity
5.9 (Medium)
CWE
- n/a
Assigner
References
12 references
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T12:01:13+00:00",
"cve": "CVE-2021-36221",
"id": "CVE-2021-36221",
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"product_status:fixed": "1053",
"product_status:known_affected": "136",
"product_status:known_not_affected": "175",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "golang: net/http/httputil: panic due to racy read of persistConn after handler panic",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-36221.json",
"version": "3"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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