curl / Docs / Vulnerability table / 7.76.0 vulnerabilities

Vulnerabilities in curl 7.76.0

curl version 7.76.0 was released on March 31 2021

It has the following 65 published security problems.

S	Flaw	First	Last
M	CVE-2026-11856: cross-origin Digest auth state leak	7.10.6	8.20.0
L	CVE-2026-9547: SSH improper host validation	7.69.0	8.20.0
L	CVE-2026-8932: incomplete mTLS config matching in conn reuse	7.7	8.20.0
M	CVE-2026-8927: env-set cross-proxy Digest auth state leak	7.12.0	8.20.0
L	CVE-2026-8924: trailing dot domain super cookie	7.46.0	8.20.0
L	CVE-2026-8458: wrong reuse for different services	7.43.0	8.20.0
L	CVE-2026-8286: wrong STARTTLS connection reuse	7.30.0	8.20.0
M	CVE-2026-7168: cross-proxy Digest auth state leak	7.12.0	8.19.0
M	CVE-2026-6429: netrc credential leak with reused proxy connection	7.14.0	8.19.0
L	CVE-2026-6276: stale custom cookie host causes cookie leak	7.71.0	8.19.0
M	CVE-2026-6253: proxy credentials leak over redirect-to proxy	7.14.1	8.19.0
L	CVE-2026-5773: wrong reuse of SMB connection	7.40.0	8.19.0
M	CVE-2026-5545: wrong reuse of HTTP Negotiate connection	7.10.6	8.19.0
L	CVE-2026-4873: connection reuse ignores TLS requirement	7.20.0	8.19.0
L	CVE-2026-3784: wrong proxy connection reuse with credentials	7.7	8.18.0
M	CVE-2026-3783: token leak with redirect and netrc	7.33.0	8.18.0
M	CVE-2026-1965: bad reuse of HTTP Negotiate connection	7.10.6	8.18.0
L	CVE-2025-15224: libssh key passphrase bypass without agent set	7.58.0	8.17.0
L	CVE-2025-15079: libssh global known_hosts override	7.58.0	8.17.0
L	CVE-2025-14524: bearer token leak on cross-protocol redirect	7.33.0	8.17.0
M	CVE-2025-14017: broken TLS options for threaded LDAPS	7.17.0	8.17.0
L	CVE-2025-10966: missing SFTP host verification with wolfSSH	7.69.0	8.16.0
L	CVE-2025-0725: gzip integer overflow	7.10.5	8.11.1
L	CVE-2025-0167: netrc and default credential leak	7.76.0	8.11.1
L	CVE-2024-11053: netrc and redirect credential leak	7.76.0	8.11.0
L	CVE-2024-9681: HSTS subdomain overwrites parent cache entry	7.74.0	8.10.1
M	CVE-2024-8096: OCSP stapling bypass with GnuTLS	7.41.0	8.9.1
L	CVE-2024-7264: ASN.1 date parser overread	7.32.0	8.9.0
M	CVE-2024-2398: HTTP/2 push headers memory-leak	7.44.0	8.6.0
M	CVE-2023-46218: cookie mixed case PSL bypass	7.46.0	8.4.0
L	CVE-2023-38546: cookie injection with none file	7.9.1	8.3.0
H	CVE-2023-38545: SOCKS5 heap buffer overflow	7.69.0	8.3.0
L	CVE-2023-28322: more POST-after-PUT confusion	7.7	8.0.1
L	CVE-2023-28321: IDN wildcard match	7.12.0	8.0.1
L	CVE-2023-28320: siglongjmp race condition	7.9.8	8.0.1
L	CVE-2023-27538: SSH connection too eager reuse still	7.16.1	7.88.1
L	CVE-2023-27536: GSS delegation too eager connection reuse	7.22.0	7.88.1
M	CVE-2023-27535: FTP too eager connection reuse	7.13.0	7.88.1
L	CVE-2023-27534: SFTP path ~ resolving discrepancy	7.18.0	7.88.1
L	CVE-2023-27533: TELNET option IAC injection	7.7	7.88.1
M	CVE-2023-23916: HTTP multi-header compression denial of service	7.57.0	7.87.0
L	CVE-2022-43552: HTTP Proxy deny use after free	7.16.0	7.86.0
M	CVE-2022-32221: POST following PUT confusion	7.7	7.85.0
L	CVE-2022-35252: control code in cookie denial of service	4.9	7.84.0
L	CVE-2022-32208: FTP-KRB bad message verification	7.16.4	7.83.1
M	CVE-2022-32207: Non-preserved file permissions	7.69.0	7.83.1
M	CVE-2022-32206: HTTP compression denial of service	7.57.0	7.83.1
L	CVE-2022-32205: Set-Cookie denial of service	7.71.0	7.83.1
M	CVE-2022-27782: TLS and SSH connection too eager reuse	7.16.1	7.83.0
L	CVE-2022-27781: CERTINFO never-ending busy-loop	7.34.0	7.83.0
L	CVE-2022-27776: Auth/cookie leak on redirect	4.9	7.82.0
L	CVE-2022-27775: Bad local IPv6 connection reuse	7.65.0	7.82.0
M	CVE-2022-27774: Credential leak on redirect	4.9	7.82.0
M	CVE-2022-22576: OAUTH2 bearer bypass in connection reuse	7.33.0	7.82.0
M	CVE-2021-22947: STARTTLS protocol injection via MITM	7.20.0	7.78.0
M	CVE-2021-22946: Protocol downgrade required TLS bypassed	7.20.0	7.78.0
M	CVE-2021-22945: UAF and double free in MQTT sending	7.73.0	7.78.0
M	CVE-2021-22926: CURLOPT_SSLCERT mix-up with Secure Transport	7.33.0	7.77.0
M	CVE-2021-22925: TELNET stack contents disclosure again	7.7	7.77.0
M	CVE-2021-22924: Bad connection reuse due to flawed path name checks	7.10.4	7.77.0
M	CVE-2021-22923: Metalink download sends credentials	7.27.0	7.77.0
M	CVE-2021-22922: Wrong content via Metalink not discarded	7.27.0	7.77.0
H	CVE-2021-22901: TLS session caching disaster	7.75.0	7.76.1
M	CVE-2021-22898: TELNET stack contents disclosure	7.7	7.76.1
L	CVE-2021-22897: Schannel cipher selection surprise	7.61.0	7.76.1

Further details

CVE data for 7.76.0 provided as JSON.

Changelog for curl 7.76.0

See vulnerability summary for the previous release: 7.75.0 or the subsequent release: 7.76.1