CVE-2022-32221

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-12-06. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4.7%CVSS: 9.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously was used to issue a PUT request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent POST request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
4.7%
EPSS %ILE
91st
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 5, 2022

Last Modified

February 13, 2026

Advisory Details (10)

Auto-updated Oct 9, 2026
⚠️ Active exploitation confirmed. Patch available.
generic🔴 Active Exploitation

About the security content of macOS Ventura 13.2 - Apple Support

https://support.apple.com/kb/HT213605
generic

About the security content of macOS Monterey 12.6.3 - Apple Support

https://support.apple.com/kb/HT213604
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20230208-0002/
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20230110-0006/
generic

curl: Multiple Vulnerabilities (GLSA 202212-01) — Gentoo security

https://security.gentoo.org/glsa/202212-01
genericMentions a patch (unverified)

[SECURITY] [DLA 3288-1] curl security update

https://lists.debian.org/debian-lts-announce/2023/01/msg00028.html
generic

HackerOne

https://hackerone.com/reports/1704017
generic

oss-security - curl: CVE-2023-28322: more POST-after-PUT confusion

http://www.openwall.com/lists/oss-security/2023/05/17/4
generic

Full Disclosure: APPLE-SA-2023-01-23-5 macOS Monterey 12.6.3

http://seclists.org/fulldisclosure/2023/Jan/20
generic

Full Disclosure: APPLE-SA-2023-01-23-4 macOS Ventura 13.2

http://seclists.org/fulldisclosure/2023/Jan/19

Vendor Advisories for CVE-2022-32221(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntucurl (7.85.0-1ubuntu0.1) @ kinetic2026-05-25ubuntu
ubuntucurl (7.47.0-1ubuntu2.19+esm6) @ xenial2026-05-25ubuntu
ubuntumysql-testsuite-5.7 (5.7.41-0ubuntu0.18.04.1) @ bionic2026-05-25ubuntu
redhatcurl-0:7.76.1-14.el9_0.62023-07-18redhat
redhatcurl-0:7.76.1-19.el9_1.12023-01-23redhat
redhatjbcs-httpd24-curl2022-12-08redhat
redhatjbcs-httpd24-curl-0:7.86.0-2.el7jbcs2022-12-08redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(15 across 15 ecosystems)
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.80.0-r4: fixed in 7.80.0-r4
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.83.1-r4: fixed in 7.83.1-r4
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-r0: fixed in 7.86.0-r0
—
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.64.0-4, 7.64.0-4+deb10u1, 7.64.0-4+deb10u2, 7.64.0-4+deb10u3
  • every version up to 7.64.0-4+deb10u4: fixed in 7.64.0-4+deb10u4
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.74.0-1.3, 7.74.0-1.3+deb11u1, 7.74.0-1.3+deb11u2, 7.74.0-1.3+deb11u3, 7.74.0-1.3+deb11u4
  • every version up to 7.74.0-1.3+deb11u5: fixed in 7.74.0-1.3+deb11u5
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-1: fixed in 7.86.0-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-1: fixed in 7.86.0-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
curl—
  • every version up to 7.86.0-1: fixed in 7.86.0-1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 27× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 185 total refreshes for this CVE.

  1. 2026-10-09 20:04 UTCEPSS rescore
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  1. 2026-09-11 14:49 UTCEPSS rescore
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  7. 2026-09-04 22:29 UTCOSV refresh
  8. 2026-09-04 13:57 UTCEPSS rescore
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  50. 2026-07-23 14:16 UTCEPSS rescore
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  54. 2026-07-22 14:06 UTCEPSS rescore
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Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-32221?
CVE-2022-32221 is a critical vulnerability published on December 5, 2022. When doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPTREADFUNCTION) to ask for data to send, even when the CURLOPTPOSTFIELDS option has been set, if the same handle previously was used to issue a PUT request which used that callback. This flaw may surprise the…
When was CVE-2022-32221 disclosed?
CVE-2022-32221 was first published on December 5, 2022, with the most recent update on February 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-32221 actively exploited?
CVE-2022-32221 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.7% probability of exploitation in the next 30 days (91st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-32221?
CVE-2022-32221 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-32221?
A fix for CVE-2022-32221 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-32221 are linked in the Vendor Advisories panel on this page.

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