libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily.
CVE-2022-27782
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-06-03. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 83.5%
- KEV
- Not listed
Published
June 2, 2022
Last Modified
May 27, 2026
References (13)
- support@hackeronehttp://www.openwall.com/lists/oss-security/2023/03/20/6
- support@hackeronehttps://hackerone.com/reports/1555796
- support@hackeronehttps://lists.debian.org/debian-lts-announce/2022/08/msg00017.html
- support@hackeronehttps://security.gentoo.org/glsa/202212-01
- support@hackeronehttps://security.netapp.com/advisory/ntap-20220609-0009/
- support@hackeronehttps://www.debian.org/security/2022/dsa-5197
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/03/20/6
- af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1555796
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202212-01
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220609-0009/
- af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5197
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://hackerone.com/reports/1555796
Vendor Advisories for CVE-2022-27782(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | curl (7.81.0-1ubuntu1.2) @ jammy | 2026-05-22 | ubuntu |
| redhat | curl-0:7.76.1-14.el9_0.4 | 2022-07-01 | redhat |
| redhat | curl-0:7.61.1-22.el8_6.3 | 2022-06-30 | redhat |
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.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
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.
- Microsoft MSRCCVE-2022-277822022-06-11
libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However several TLS andSSH settings were left out from the configuration match checks making themmatch too easily.
- UbuntuUSN-5412-1MEDIUM
curl vulnerabilities
Data Freshness Timeline
(refreshed 12× in last 7d / 42× 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 114 total refreshes for this CVE.
- 2026-07-11 13:22 UTCOSV refresh
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-09 19:07 UTCEPSS rescore
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- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-22 19:35 UTCOSV refresh
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- 2026-06-21 14:55 UTCEPSS rescore
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- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 10:00 UTCOSV refresh
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
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- 2026-05-22 06:43 UTCEG score recompute
- 2026-05-22 06:43 UTCVendor advisory
- 2026-05-22 06:43 UTCGHSA enrichment
- 2026-05-21 22:41 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
Frequently asked(5)
What is CVE-2022-27782?
When was CVE-2022-27782 disclosed?
Is CVE-2022-27782 actively exploited?
What is the CVSS score of CVE-2022-27782?
How do I remediate CVE-2022-27782?
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