- Issued:
- 2026-10-29
- Updated:
- 2026-10-29
RHSA-2026:92368 - Security Advisory
Synopsis
Important: curl security, bug fix, and enhancement update
Type/Severity
Security Advisory: Important
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for curl is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.
Security Fix(es):
- libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse (CVE-2026-8932)
- curl: libcurl: Unauthorized connection reuse due to a logical error (CVE-2026-8458)
- curl: curl: Cookie injection via malicious HTTP server using super cookies (CVE-2026-8924)
- curl: curl: Information disclosure via incorrect Digest authentication header reuse (CVE-2026-11856)
- curl: Information disclosure due to uncleared proxy authentication state (CVE-2026-8927)
Bug Fix(es) and Enhancement(s):
- Backport upstream curl PR #6852 ("h2: allow 100 streams by default") to RHEL 8 libcurl (JIRA:RHEL-232829)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux for x86_64 8 x86_64
- Red Hat Enterprise Linux for IBM z Systems 8 s390x
- Red Hat Enterprise Linux for Power, little endian 8 ppc64le
- Red Hat Enterprise Linux for ARM 64 8 aarch64
- Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64
- Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64
- Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le
- Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x
Fixes
- BZ - 2496759 - CVE-2026-8932 libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse
- BZ - 2496764 - CVE-2026-8458 curl: libcurl: Unauthorized connection reuse due to a logical error
- BZ - 2496765 - CVE-2026-8924 curl: curl: Cookie injection via malicious HTTP server using super cookies
- BZ - 2496767 - CVE-2026-11856 curl: curl: Information disclosure via incorrect Digest authentication header reuse
- BZ - 2496769 - CVE-2026-8927 curl: Information disclosure due to uncleared proxy authentication state
- RHEL-232829 - Backport upstream curl PR #6852 ("h2: allow 100 streams by default") to RHEL 8 libcurl
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat Enterprise Linux for x86_64 8
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| x86_64 | |
| curl-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 93075bd3c505ddca7464bf6324ce4caa17735d3ff1d6712b199ce9a53a23aed4 |
| curl-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: b1340c390e0ff99742383d6771d598374305b93a8ef089a99cbea6026f4b4ed5 |
| curl-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: f79d4e379c9516ee897eace766f5ad45e52458969c391a7441e3cab1648ce7d7 |
| curl-debugsource-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 2e7dedaaa0436eff1d86c6e1197f504b521ad3dfcfd430f26e648dd153837338 |
| curl-debugsource-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: e94b99af4c704a8bd47b1767c75540364fe54b9d09aa1dacd112c12bbcac52f3 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: c8927d1e88e4a3ac99940210912f9cf4605057c6226272e798db46a3dd5f7500 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 08c2f948836acb4f6d73a0308d14d755653eddbb548f4d3fe3aafe7eb5ac0e0f |
| libcurl-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 55fcc6095439410a4e8b7d014ff09f3ad8f4fdc118a416e6c011663a3d7a72ba |
| libcurl-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 48c4b3b6d53a4290bf0c36a0bfd616bae97c4748837920f052cb0839fb601489 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 081f743780d4595396ba71b4b882092b7e20a0918d343055603374fea2c4a161 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 7018805a598ceff0d1204c7ea11c65b00aaa23f59697ea790477d6473baccfd6 |
| libcurl-devel-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 82f07844ef0084517d4e3e7f9f72fecdfee894f8e3897e8392e133176ae44d23 |
| libcurl-devel-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 8457890319d7f6cf9283078a204a24c001cd43c670bbcd254559292839695075 |
| libcurl-minimal-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 108578eea979b915da647646de49a58c305266acf01c3f139d4f6b708a324874 |
| libcurl-minimal-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 99c78773e628f7d51bcde59de964ae1ac5c62f03fb91309c9e29c387e691bcd7 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: ab8809be94c5cf0367e7cb5b115afde2e0d6fd0bb4316069bf07c0ca823193c7 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 9e3eb0ac5bcffced7badbe100d3e7faafd897e229feca297f2c32650e36ae365 |
Red Hat Enterprise Linux for IBM z Systems 8
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| s390x | |
| curl-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 30edf1cf4d92c28f1166181bda4cc095a08f77847d21c8afce94da57ec3745e7 |
| curl-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 92fc9acb38a26fc0eb90423acdcc42e294ca3ee1f2f4ab860aad57da2c414316 |
| curl-debugsource-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: c04478149da5d889b1f7e525c3c86b6eca4d7b1cfb812d01f6ad3931a0591716 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: ee0fc60a01c6563a70f7de7509d1c1cc46923347044c740d569d2a47bb791ff0 |
| libcurl-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: b3b4df4b2f7b16e4893d05514d7cd7dc99d4769185469e3158eab5d1e4237987 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: e9c38bbd2f1793ccd897cacbaeb175a19f168f37d22baeb293744c7626022ca9 |
| libcurl-devel-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 508733d596d3af3bc808655f61cebf631a466f6b613aacafcdd84474b4fd204d |
| libcurl-minimal-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 25ddea01018fe1ca54b177abf9d1b77968370ddf9d0fcb0132970c3f351587da |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 32fc483473db25eaadb886189cd887eeec7ecbce040eb92101ac90800c773099 |
Red Hat Enterprise Linux for Power, little endian 8
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| ppc64le | |
| curl-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: ae434259e763aeb2070a647544ccfed000998799e2a9b53fd6ceabe78d29c3f2 |
| curl-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 963faf47b962d668e65c6960c1b6651da50c2868057cf43b7edd9881a08ce5e8 |
| curl-debugsource-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 976278cec2dddf65d8cc1adbceae50100a406f10429e0738d1a5b8ec35c68367 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 2cb5d696e332238455a90626e1a202c91afb5d7d9c5fb19ed712f8c575ad56cd |
| libcurl-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 0ce964d82a4100b61d35cced9636c4ca4460453479f86aa9c52240a906386cb8 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 53821f76989a9a5b5d5f45802856f4df8c57a182dd29ed1a724f27fa2b8a4e87 |
| libcurl-devel-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 4c0b9e054f9610ebfcb9ab0a01e1368422ec519d4bcf08b7e854dc7e5e450916 |
| libcurl-minimal-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: fc1ffdf75872aa9e1e9c51bcb659285c99d1796f7b645e722157a665305872a3 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: d464fc99699f14398c07e61c53f4ae6eb411f6b13de617cc8ee1b1d53a78bed0 |
Red Hat Enterprise Linux for ARM 64 8
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| aarch64 | |
| curl-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 894c5a8b79253867f0460eddfa349126b60a9991a9f6a9012ef038b62cba2489 |
| curl-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 7dff30139df1d60056c2599bf04a29148996b9e9c233cfe1d67f936675913d67 |
| curl-debugsource-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 752a1b381718e8994b60f412f314945c645b878b6411bf7031667519b00f6a21 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 2c2080c4f147496629b56d55c9ecf4229048b582f0d46e5afaf8103e740bb762 |
| libcurl-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 65ca4c0f0aa331336a32723d6ec0f4583453998c33cf32a4bbe7532e2ef59f8b |
| libcurl-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: ac73b62c546610e5ca064f3b86b0f0d84f0c3534ab85859ba15bd9ef656a6e8c |
| libcurl-devel-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 39296c1533d8820c0f0cd41d5e8483974b3af4f99314a5d708f0daf49f62b85b |
| libcurl-minimal-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 5f16c847180657c0cba2ceeeef12a7c7ead830a9f4f68e8a0fe015ffe44ba299 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: fa00b2d2b11d390ff8945573697961b4587611c623ae11b8d573188952400370 |
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| x86_64 | |
| curl-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 93075bd3c505ddca7464bf6324ce4caa17735d3ff1d6712b199ce9a53a23aed4 |
| curl-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: b1340c390e0ff99742383d6771d598374305b93a8ef089a99cbea6026f4b4ed5 |
| curl-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: f79d4e379c9516ee897eace766f5ad45e52458969c391a7441e3cab1648ce7d7 |
| curl-debugsource-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 2e7dedaaa0436eff1d86c6e1197f504b521ad3dfcfd430f26e648dd153837338 |
| curl-debugsource-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: e94b99af4c704a8bd47b1767c75540364fe54b9d09aa1dacd112c12bbcac52f3 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: c8927d1e88e4a3ac99940210912f9cf4605057c6226272e798db46a3dd5f7500 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 08c2f948836acb4f6d73a0308d14d755653eddbb548f4d3fe3aafe7eb5ac0e0f |
| libcurl-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 55fcc6095439410a4e8b7d014ff09f3ad8f4fdc118a416e6c011663a3d7a72ba |
| libcurl-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 48c4b3b6d53a4290bf0c36a0bfd616bae97c4748837920f052cb0839fb601489 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 081f743780d4595396ba71b4b882092b7e20a0918d343055603374fea2c4a161 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 7018805a598ceff0d1204c7ea11c65b00aaa23f59697ea790477d6473baccfd6 |
| libcurl-devel-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 82f07844ef0084517d4e3e7f9f72fecdfee894f8e3897e8392e133176ae44d23 |
| libcurl-devel-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 8457890319d7f6cf9283078a204a24c001cd43c670bbcd254559292839695075 |
| libcurl-minimal-7.61.1-34.el8_10.18.i686.rpm | SHA-256: 108578eea979b915da647646de49a58c305266acf01c3f139d4f6b708a324874 |
| libcurl-minimal-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 99c78773e628f7d51bcde59de964ae1ac5c62f03fb91309c9e29c387e691bcd7 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.i686.rpm | SHA-256: ab8809be94c5cf0367e7cb5b115afde2e0d6fd0bb4316069bf07c0ca823193c7 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.x86_64.rpm | SHA-256: 9e3eb0ac5bcffced7badbe100d3e7faafd897e229feca297f2c32650e36ae365 |
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| aarch64 | |
| curl-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 894c5a8b79253867f0460eddfa349126b60a9991a9f6a9012ef038b62cba2489 |
| curl-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 7dff30139df1d60056c2599bf04a29148996b9e9c233cfe1d67f936675913d67 |
| curl-debugsource-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 752a1b381718e8994b60f412f314945c645b878b6411bf7031667519b00f6a21 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 2c2080c4f147496629b56d55c9ecf4229048b582f0d46e5afaf8103e740bb762 |
| libcurl-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 65ca4c0f0aa331336a32723d6ec0f4583453998c33cf32a4bbe7532e2ef59f8b |
| libcurl-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: ac73b62c546610e5ca064f3b86b0f0d84f0c3534ab85859ba15bd9ef656a6e8c |
| libcurl-devel-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 39296c1533d8820c0f0cd41d5e8483974b3af4f99314a5d708f0daf49f62b85b |
| libcurl-minimal-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: 5f16c847180657c0cba2ceeeef12a7c7ead830a9f4f68e8a0fe015ffe44ba299 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.aarch64.rpm | SHA-256: fa00b2d2b11d390ff8945573697961b4587611c623ae11b8d573188952400370 |
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| ppc64le | |
| curl-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: ae434259e763aeb2070a647544ccfed000998799e2a9b53fd6ceabe78d29c3f2 |
| curl-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 963faf47b962d668e65c6960c1b6651da50c2868057cf43b7edd9881a08ce5e8 |
| curl-debugsource-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 976278cec2dddf65d8cc1adbceae50100a406f10429e0738d1a5b8ec35c68367 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 2cb5d696e332238455a90626e1a202c91afb5d7d9c5fb19ed712f8c575ad56cd |
| libcurl-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 0ce964d82a4100b61d35cced9636c4ca4460453479f86aa9c52240a906386cb8 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 53821f76989a9a5b5d5f45802856f4df8c57a182dd29ed1a724f27fa2b8a4e87 |
| libcurl-devel-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: 4c0b9e054f9610ebfcb9ab0a01e1368422ec519d4bcf08b7e854dc7e5e450916 |
| libcurl-minimal-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: fc1ffdf75872aa9e1e9c51bcb659285c99d1796f7b645e722157a665305872a3 |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.ppc64le.rpm | SHA-256: d464fc99699f14398c07e61c53f4ae6eb411f6b13de617cc8ee1b1d53a78bed0 |
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10
| SRPM | |
|---|---|
| curl-7.61.1-34.el8_10.18.src.rpm | SHA-256: 9ea646631b377d6ed5d71a79674667f5f3317ab34a9f074bb274f21bf9d364b3 |
| s390x | |
| curl-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 30edf1cf4d92c28f1166181bda4cc095a08f77847d21c8afce94da57ec3745e7 |
| curl-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 92fc9acb38a26fc0eb90423acdcc42e294ca3ee1f2f4ab860aad57da2c414316 |
| curl-debugsource-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: c04478149da5d889b1f7e525c3c86b6eca4d7b1cfb812d01f6ad3931a0591716 |
| curl-minimal-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: ee0fc60a01c6563a70f7de7509d1c1cc46923347044c740d569d2a47bb791ff0 |
| libcurl-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: b3b4df4b2f7b16e4893d05514d7cd7dc99d4769185469e3158eab5d1e4237987 |
| libcurl-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: e9c38bbd2f1793ccd897cacbaeb175a19f168f37d22baeb293744c7626022ca9 |
| libcurl-devel-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 508733d596d3af3bc808655f61cebf631a466f6b613aacafcdd84474b4fd204d |
| libcurl-minimal-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 25ddea01018fe1ca54b177abf9d1b77968370ddf9d0fcb0132970c3f351587da |
| libcurl-minimal-debuginfo-7.61.1-34.el8_10.18.s390x.rpm | SHA-256: 32fc483473db25eaadb886189cd887eeec7ecbce040eb92101ac90800c773099 |
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