CVE-2023-37276

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 69.2% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-07-19 19:39Z3 YR AGO

Last updated

2024-10-18 17:14Z1 YR AGO

Reserved

2023-06-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weaknesses

• CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base

Data version

5.1

Document digest

a9c68c6265cb3d0333cb5f7458ec34b9be2746e3918855640e6ffe3ea2ddd60e

• github.comhttps://github.com/aio-libs/aiohttp/security/advisories/GHSA-45c4-8wx5-qw6wx_refsource_CONFIRM
• github.comhttps://github.com/aio-libs/aiohttp/commit/9337fb3f2ab2b5f38d7e98a194bde6f7e3d16c40x_refsource_MISC
• hackerone.comhttps://hackerone.com/reports/2001873x_refsource_MISC
• github.comhttps://github.com/aio-libs/aiohttp/blob/v3.8.4/.gitmodulesx_refsource_MISC