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58 vulnerabilities found for by aio-libs
CVE-2026-111750 (GCVE-0-2026-111750)
Vulnerability from cvelistv5
Published
2026-10-19 17:06
Modified
2026-10-28 15:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the pure Python parser accepts ambiguous HTTP request framing. An unauthenticated attacker can consequently smuggle requests when an application uses AIOHTTP_NO_EXTENSIONS or otherwise runs without a standard wheel and an intermediary interprets the framing differently. This issue is fixed in version 3.14.4.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2026-111749 (GCVE-0-2026-111749)
Vulnerability from cvelistv5
Published
2026-10-19 17:04
Modified
2026-10-22 20:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.
References
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CVE-2026-111748 (GCVE-0-2026-111748)
Vulnerability from cvelistv5
Published
2026-10-19 17:02
Modified
2026-10-19 18:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-807 - Reliance on Untrusted Inputs in a Security Decision
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, an attacker can send an absolute-form request that causes Request.scheme to use attacker-controlled request-target scheme data instead of the connection protocol. Applications that use Request.scheme for security decisions can consequently be tricked into treating an unencrypted connection as encrypted or an encrypted connection as unencrypted. This issue is fixed in version 3.14.4.
References
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CVE-2026-111066 (GCVE-0-2026-111066)
Vulnerability from cvelistv5
Published
2026-10-19 16:59
Modified
2026-10-20 16:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4.
References
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CVE-2026-111065 (GCVE-0-2026-111065)
Vulnerability from cvelistv5
Published
2026-10-19 16:57
Modified
2026-10-19 17:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Max-Age processing can overflow and skip closing a connection. An attacker can consequently exhaust the connection pool temporarily until garbage collection resolves the connections. This issue is fixed in version 3.14.4.
References
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CVE-2026-111064 (GCVE-0-2026-111064)
Vulnerability from cvelistv5
Published
2026-10-19 16:47
Modified
2026-10-28 15:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, keepalive timeout handling is absent during the initial portion of a request. An attacker can keep an idle connection open indefinitely before sending any request data, consuming server connection capacity. This issue is fixed in version 3.14.4.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2026-111063 (GCVE-0-2026-111063)
Vulnerability from cvelistv5
Published
2026-10-19 16:44
Modified
2026-10-22 20:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2026-104874 (GCVE-0-2026-104874)
Vulnerability from cvelistv5
Published
2026-10-02 20:21
Modified
2026-10-05 16:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Summary
Multidict is an implementation of a multidict data structure. From 6.7.0 until 6.9.1, the C extension's items-view reflected union operation, operand | d.items(), in multidict_itemsview_or2_impl and subtraction operation, d.items() - operand, in multidict_itemsview_sub1_impl fail to release new key-identity and value references returned for each operand element. Applications that perform these operations over attacker-influenced sequences can leak two strong references per element, and garbage collection cannot reclaim them, so repeated operations can cause unbounded process memory growth and denial of service. Forward union, intersection, non-tuple operand elements, and pure-Python builds are not affected by this reference leak. This issue is fixed in version 6.9.1.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2026-69244 (GCVE-0-2026-69244)
Vulnerability from cvelistv5
Published
2026-08-03 20:50
Modified
2026-08-04 14:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.3, an out-of-bounds heap read could occur in the C response parser while building an error message for a malformed response. An attacker controlled server, or possibly an accidental response, could trigger a DoS in the client. The vulnerable path was error message construction in aiohttp/_http_parser.pyx, where an llhttp error-position pointer was used to build a snippet for malformed chunked responses and malformed request or response bytes at the buffer end. This issue is fixed in version 3.14.3.
References
| URL | Tags | |||||||||||||
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CVE-2026-69243 (GCVE-0-2026-69243)
Vulnerability from cvelistv5
Published
2026-08-03 20:45
Modified
2026-08-05 14:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the HTTP parsers were vulnerable to a request smuggling attack relating to WebSocket upgrades. If using the server-side component, an attacker may be able to execute a request smuggling vulnerability using an edge case in the WebSocket upgrade procedure. A WebSocket upgrade request with a body could cause the parser to switch protocols before the complete request body was received, leaving trailing bytes to be handled as upgraded-protocol or pipelined data rather than normal HTTP body data. This issue is fixed in version 3.14.2.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2026-59881 (GCVE-0-2026-59881)
Vulnerability from cvelistv5
Published
2026-07-30 17:34
Modified
2026-07-30 18:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.2, the WebSocket client accepts and decompresses frames with the RSV1 bit set even when the permessage-deflate extension was not negotiated, allowing a malicious server to cause unexpected CPU and memory consumption. This issue is fixed in version 3.14.2.
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CVE-2026-54273 (GCVE-0-2026-54273)
Vulnerability from cvelistv5
Published
2026-06-22 16:41
Modified
2026-06-22 17:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, no limit was present on the number of pipelined requests that could be queued. An attacker may be able to use pipelined requests to use excessive amounts of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.
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CVE-2026-54280 (GCVE-0-2026-54280)
Vulnerability from cvelistv5
Published
2026-06-22 16:40
Modified
2026-06-22 18:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-404 - Improper Resource Shutdown or Release
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, payload resources are not closed correctly when a client disconnects in the middle of a write. If a payload is using an open file or similar limited resource, then an attacker may be able to cause resource starvation temporarily until garbage collection or similar closes the file. This vulnerability is fixed in 3.14.1.
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CVE-2026-54278 (GCVE-0-2026-54278)
Vulnerability from cvelistv5
Published
2026-06-22 16:38
Modified
2026-06-23 16:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, during cleanup it is possible for a compressed request body to be decompressed into memory in one chunk. An attacker may be able to send a compressed payload in specific situations that could be decompressed into memory, potentially leading to DoS (a zip bomb edge case). This vulnerability is fixed in 3.14.1.
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CVE-2026-54277 (GCVE-0-2026-54277)
Vulnerability from cvelistv5
Published
2026-06-22 16:37
Modified
2026-06-23 16:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, it is possible to bypass the max_line_size check in parts of an HTTP request in the C parser. If using the optimised C parser (the default in pre-built wheels), then an attacker may be able to send oversized lines through the HTTP parser and use an excessive amount of memory, potentially leading to DoS. This vulnerability is fixed in 3.14.1.
References
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CVE-2026-54276 (GCVE-0-2026-54276)
Vulnerability from cvelistv5
Published
2026-06-22 16:36
Modified
2026-06-23 16:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, DigestAuthMiddleware can send an authentication response after following a cross-origin redirect. This likely requires an open redirect vulnerability or similar on the target domain for an attacker to be able to execute. Further, the attacker is only receiving the digest, so should only be able to extract the user's credentials if the cryptography is weak or there is some kind of password reuse. This vulnerability is fixed in 3.14.1.
References
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CVE-2026-54275 (GCVE-0-2026-54275)
Vulnerability from cvelistv5
Published
2026-06-22 16:34
Modified
2026-06-22 17:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-297 - Improper Validation of Certificate with Host Mismatch
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, the server_hostname TLS SNI check can be bypassed when an existing connection is reused. If an application makes multiple requests to the same domain, but with different per-request server_hostname parameters, then the later calls may succeed by reusing the existing connection when they should have been rejected due to the TLS SNI check. This vulnerability is fixed in 3.14.1.
References
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CVE-2026-54274 (GCVE-0-2026-54274)
Vulnerability from cvelistv5
Published
2026-06-22 16:33
Modified
2026-06-22 18:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, if an attacker sends large incomplete websocket frame payloads, it may be possible to bypass the usual size limits on memory use. This vulnerability is fixed in 3.14.1.
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CVE-2026-54279 (GCVE-0-2026-54279)
Vulnerability from cvelistv5
Published
2026-06-22 16:32
Modified
2026-06-22 17:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-665 - Improper Initialization
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.1, host-only cookies that are saved with CookieJar.save() and then restored later with CookieJar.load() lose their host-only status. This vulnerability is fixed in 3.14.1.
References
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CVE-2026-50269 (GCVE-0-2026-50269)
Vulnerability from cvelistv5
Published
2026-06-22 16:30
Modified
2026-06-22 17:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.0, attacker-controlled input included into multipart/payload headers can be used to modify a request to inject additional headers or similar. In the unlikely situation that an application is passing user-controlled strings into MultipartWriter.append(headers=...) or Payload.headers, then an attacker may be able to modify the request to inject headers or change the contents of the request. This vulnerability is fixed in 3.14.0.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-47265 (GCVE-0-2026-47265)
Vulnerability from cvelistv5
Published
2026-06-02 18:32
Modified
2026-06-03 12:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-346 - Origin Validation Error
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, cookies set with the `cookies` parameter on requests are sent after following a cross-origin redirect. If a developer uses the `cookies` parameter on a per-request basis then sensitive data might be leaked to an attacker if they manage to control a redirect. Version 3.14.0 patches the issue. If unable to upgrade, using a `Cookie` header in the `headers` parameter is not vulnerable.
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CVE-2026-34993 (GCVE-0-2026-34993)
Vulnerability from cvelistv5
Published
2026-06-02 18:29
Modified
2026-09-17 12:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-502 - Deserialization of Untrusted Data
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.14.0, using ``CookieJar.load()`` with untrusted input may allow arbitrary code execution. Most applications using this function will be doing so with the user's own data, so this is unlikely to affect many applications. Version 3.14.0 patches the issue. If an application does allow attacker controlled files to be loaded, a workaround on older releases would be to sanitize the files before loading.
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CVE-2026-34525 (GCVE-0-2026-34525)
Vulnerability from cvelistv5
Published
2026-04-01 20:28
Modified
2026-06-23 15:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, multiple Host headers were allowed in aiohttp. This issue has been patched in version 3.13.4.
References
| URL | Tags | |
|---|---|---|
|
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CVE-2026-34520 (GCVE-0-2026-34520)
Vulnerability from cvelistv5
Published
2026-04-01 20:27
Modified
2026-04-04 03:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, the C parser (the default for most installs) accepted null bytes and control characters in response headers. This issue has been patched in version 3.13.4.
References
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CVE-2026-34519 (GCVE-0-2026-34519)
Vulnerability from cvelistv5
Published
2026-04-01 20:26
Modified
2026-04-02 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the reason parameter when creating a Response may be able to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.
References
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CVE-2026-34518 (GCVE-0-2026-34518)
Vulnerability from cvelistv5
Published
2026-04-01 20:15
Modified
2026-04-02 14:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, when following redirects to a different origin, aiohttp drops the Authorization header, but retains the Cookie and Proxy-Authorization headers. This issue has been patched in version 3.13.4.
References
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CVE-2026-34517 (GCVE-0-2026-34517)
Vulnerability from cvelistv5
Published
2026-04-01 20:14
Modified
2026-06-23 15:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4.
References
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CVE-2026-34516 (GCVE-0-2026-34516)
Vulnerability from cvelistv5
Published
2026-04-01 20:13
Modified
2026-04-04 03:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been patched in version 3.13.4.
References
| URL | Tags | ||||||||||
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CVE-2026-34515 (GCVE-0-2026-34515)
Vulnerability from cvelistv5
Published
2026-04-01 20:10
Modified
2026-04-02 15:38
Severity ?
VLAI Severity ?
EPSS score ?
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, on Windows the static resource handler may expose information about a NTLMv2 remote path. This issue has been patched in version 3.13.4.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2026-34514 (GCVE-0-2026-34514)
Vulnerability from cvelistv5
Published
2026-04-01 20:09
Modified
2026-04-02 14:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, an attacker who controls the content_type parameter in aiohttp could use this to inject extra headers or similar exploits. This issue has been patched in version 3.13.4.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
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],
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{
"product": "aiohttp",
"vendor": "aio-libs",
"versions": [
{
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],
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{
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"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 2.7,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-113",
"description": "CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)",
"lang": "en",
"type": "CWE"
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]
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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{
"name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2vrm-gr82-f7m5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-2vrm-gr82-f7m5"
},
{
"name": "https://github.com/aio-libs/aiohttp/commit/9a6ada97e2c6cf1ce31727c6c9fcea17c21f6f06",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/aio-libs/aiohttp/commit/9a6ada97e2c6cf1ce31727c6c9fcea17c21f6f06"
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{
"name": "https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4",
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"url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.13.4"
}
],
"source": {
"advisory": "GHSA-2vrm-gr82-f7m5",
"discovery": "UNKNOWN"
},
"title": "AIOHTTP: CRLF injection in multipart part content type header construction"
}
},
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"cveId": "CVE-2026-34514",
"datePublished": "2026-04-01T20:09:50.936Z",
"dateReserved": "2026-03-30T16:03:31.047Z",
"dateUpdated": "2026-04-02T14:07:17.671Z",
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