Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-9u45-d21t-b7fq
Summary
HTTP Request Smuggling in akka-http-core
A vulnerable Akka HTTP server will accept a malformed message and hand it over to the user. If the user application proxies this message to another server unchanged and that server also accepts that message but interprets it as two HTTP messages, the second message has reached the second server without having been inspected by the proxy.
Aliases
0
alias CVE-2021-23339
1
alias GHSA-2w7w-2j92-44hx
Fixed_packages
Affected_packages
0
url pkg:maven/com.typesafe.akka/akka-http-core@10.2.0
purl pkg:maven/com.typesafe.akka/akka-http-core@10.2.0
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-9u45-d21t-b7fq
1
vulnerability VCID-w7g1-y7u7-z3fg
resource_url http://public2.vulnerablecode.io/packages/pkg:maven/com.typesafe.akka/akka-http-core@10.2.0
References
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-23339
reference_id
reference_type
scores
0
value 0.00211
scoring_system epss
scoring_elements 0.43366
published_at 2026-05-07T12:55:00Z
1
value 0.00211
scoring_system epss
scoring_elements 0.43611
published_at 2026-04-09T12:55:00Z
2
value 0.00211
scoring_system epss
scoring_elements 0.43629
published_at 2026-04-11T12:55:00Z
3
value 0.00211
scoring_system epss
scoring_elements 0.43598
published_at 2026-04-12T12:55:00Z
4
value 0.00211
scoring_system epss
scoring_elements 0.43582
published_at 2026-04-13T12:55:00Z
5
value 0.00211
scoring_system epss
scoring_elements 0.43643
published_at 2026-04-16T12:55:00Z
6
value 0.00211
scoring_system epss
scoring_elements 0.43632
published_at 2026-04-18T12:55:00Z
7
value 0.00211
scoring_system epss
scoring_elements 0.43567
published_at 2026-04-21T12:55:00Z
8
value 0.00211
scoring_system epss
scoring_elements 0.43499
published_at 2026-04-24T12:55:00Z
9
value 0.00211
scoring_system epss
scoring_elements 0.43503
published_at 2026-04-26T12:55:00Z
10
value 0.00211
scoring_system epss
scoring_elements 0.4342
published_at 2026-04-29T12:55:00Z
11
value 0.00211
scoring_system epss
scoring_elements 0.4329
published_at 2026-05-05T12:55:00Z
12
value 0.00211
scoring_system epss
scoring_elements 0.43529
published_at 2026-04-01T12:55:00Z
13
value 0.00211
scoring_system epss
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published_at 2026-04-02T12:55:00Z
14
value 0.00211
scoring_system epss
scoring_elements 0.43618
published_at 2026-04-04T12:55:00Z
15
value 0.00211
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published_at 2026-04-07T12:55:00Z
16
value 0.00211
scoring_system epss
scoring_elements 0.43606
published_at 2026-04-08T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-23339
1
reference_url https://doc.akka.io/docs/akka-http/10.1/security/2021-02-24-incorrect-handling-of-Transfer-Encoding-header.html
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://doc.akka.io/docs/akka-http/10.1/security/2021-02-24-incorrect-handling-of-Transfer-Encoding-header.html
2
reference_url https://github.com/akka/akka-http/commit/e3a4935151c91cee28e65e6b894dd50839ef9d34
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/akka/akka-http/commit/e3a4935151c91cee28e65e6b894dd50839ef9d34
3
reference_url https://github.com/akka/akka-http/pull/3754%23issuecomment-779265201
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://github.com/akka/akka-http/pull/3754%23issuecomment-779265201
4
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-23339
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-23339
5
reference_url https://snyk.io/vuln/SNYK-JAVA-COMTYPESAFEAKKA-1075043
reference_id
reference_type
scores
0
value 6.5
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
1
value MODERATE
scoring_system generic_textual
scoring_elements
url https://snyk.io/vuln/SNYK-JAVA-COMTYPESAFEAKKA-1075043
6
reference_url https://github.com/advisories/GHSA-2w7w-2j92-44hx
reference_id GHSA-2w7w-2j92-44hx
reference_type
scores
0
value MODERATE
scoring_system cvssv3.1_qr
scoring_elements
url https://github.com/advisories/GHSA-2w7w-2j92-44hx
Weaknesses
0
cwe_id 444
name Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
description The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
1
cwe_id 1035
name OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
description Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017.
2
cwe_id 937
name OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
description Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013.
Exploits
Severity_range_score4.0 - 6.9
Exploitability0.5
Weighted_severity6.2
Risk_score3.1
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-9u45-d21t-b7fq