01 Record

CVE-2023-28322

An information disclosure vulnerability exists in curl <v8.1.0 when doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when

MediumPUBLISHEDCNA: hackerone

CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

View raw JSON

02 Description

03 Exploitation and scoring

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

2.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Low. 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.

04 Metadata

Published

2023-05-26 00:00Z3 YR AGO

Last updated

2026-02-13 19:43Z6 MO AGO

Reserved

2023-03-14

Assigning CNA

hackerone

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:L/I:N/A:N

Weaknesses

CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
CWE-440Expected Behavior ViolationBase

Data version

5.2

Document digest

4356a0f6334216f08d8696c7eed2b1418e479a0f0513e511aeeb30fea67a3fab

05 Affected products

VendorProductVersionsPlatforms

n/ahttps://github.com/curl/curlFixed in 8.1.0—

06 References

hackerone.comhttps://hackerone.com/reports/1954658
lists.fedoraproject.orgFEDORA-2023-37eac50e9bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F4I75RDGX5ULSSCBE5BF3P5I5SFO7ULQ/vendor-advisory
lists.fedoraproject.orgFEDORA-2023-8ed627bb04https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2LIWHWKOVH24COGGBCVOWDXXIUPKOMK/vendor-advisory
security.netapp.comhttps://security.netapp.com/advisory/ntap-20230609-0009/
support.apple.comhttps://support.apple.com/kb/HT213843
support.apple.comhttps://support.apple.com/kb/HT213844
support.apple.comhttps://support.apple.com/kb/HT213845
seclists.org20230725 APPLE-SA-2023-07-24-6 macOS Big Sur 11.7.9http://seclists.org/fulldisclosure/2023/Jul/52mailing-list
seclists.org20230725 APPLE-SA-2023-07-24-5 macOS Monterey 12.6.8http://seclists.org/fulldisclosure/2023/Jul/48mailing-list
seclists.org20230725 APPLE-SA-2023-07-24-4 macOS Ventura 13.5http://seclists.org/fulldisclosure/2023/Jul/47mailing-list
security.gentoo.orgGLSA-202310-12https://security.gentoo.org/glsa/202310-12vendor-advisory
lists.debian.org[debian-lts-announce] 20231222 [SECURITY] [DLA 3692-1] curl security updatehttps://lists.debian.org/debian-lts-announce/2023/12/msg00015.htmlmailing-list

01 Record index

CVE-2023-28322

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-28322

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References