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CVE-2026-126873

chromium-browser: chromium-browser: Use after free in Extensions

Use after free in Extensions in Google Chrome on on Windows prior to 157.0.8103.78 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-126852

chromium-browser: chromium-browser: Use after free in MediaStream

Use after free in MediaStream in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-120143

PostgreSQL transition-table cursor use-after-free executes arbitrary code

Use after free in PostgreSQL trigger functions allows an object creator to execute arbitrary code as the operating system user running the database, via a cursor over a transition table. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-120147

PostgreSQL dblink reentrant disconnect use-after-free executes arbitrary code

Use after free in the PostgreSQL dblink extension allows an object creator to execute arbitrary code as the operating system user running the database, via type conversion code that re-enters dblink and closes a connection whose results an outer dblink call is reading. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-120152

PostgreSQL pg_show_all_settings() use-after-free discloses memory

Use after free in PostgreSQL pg_show_all_settings() allows a database user to retrieve memory contents, via loading a module while the function is scanning custom-variable placeholders that the module replaces and frees. Within major versions 16-18, minor versions before PostgreSQL 18.7, 17.12, and 16.16 are affected. Versions before PostgreSQL 16 are unaffected.

CVSS 3.1 · 4.3 Medium EPSS n/a KEV · Not listed
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CVE-2026-116304

PostgreSQL parallel RECORD typmod use-after-free executes arbitrary code

Use after free in PostgreSQL coordination of anonymous RECORD type identifiers among parallel workers allows a database user to execute arbitrary code as the operating system user running the database, via causing one process to free a shared tuple descriptor while another process retains and later uses its address. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116307

PostgreSQL plperl prepared-query use-after-free executes arbitrary code

Use after free in PostgreSQL plperl allows an object creator to execute arbitrary code as the operating system user running the database, via re-entering plperl and freeing a prepared query while an outer invocation is executing it. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116310

PostgreSQL COPY error context uses freed field storage

Use after free in PostgreSQL COPY FROM error reporting allows a database user to disclose portions of server memory, via a longer input row following an ignored or nullified conversion error. file_fdw reaches the same code path in affected version 18. Within major versions 17-18, minor versions before PostgreSQL 18.7 and 17.12 are affected. Versions before PostgreSQL 17 are unaffected.

CVSS 3.1 · 4.3 Medium EPSS n/a KEV · Not listed
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CVE-2026-120150

PostgreSQL expanded-record domain-check use-after-free executes arbitrary code

Use after free in PostgreSQL expanded-record domain checks allows an object creator to execute arbitrary code as the operating system user running the database, via repeated checks of a domain over a composite type that cause reuse of a dangling memory-context pointer. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116319

PostgreSQL plperl reentrant return_next() use-after-free executes arbitrary code

Use after free in PostgreSQL plperl allows an object creator to execute arbitrary code as the operating system user running the database, via reentrant return_next() calls. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116320

PostgreSQL plperl array and hash conversion use-after-free executes arbitrary code

Use after free in PostgreSQL plperl allows an object creator to execute arbitrary code as the operating system user running the database, via dropping the final reference to a Perl array or hash while PostgreSQL is converting that object. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116323

PostgreSQL pltcl reentrant result conversion use-after-free executes arbitrary code

Use after free in PostgreSQL pltcl allows an object creator to execute arbitrary code as the operating system user running the database, via a domain CHECK that re-enters the Tcl interpreter and frees or changes a string still used by the outer result conversion. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116326

PostgreSQL plperl tied-object exceptions follow stale sigjmp_buf

Uncaught exceptions in PostgreSQL plperl allow an object creator to cause use of a stale sigjmp_buf, via a tied Perl object, or a Perl object whose overloaded conversion throws while plperl is handling another error. We have not ruled out arbitrary code execution on some platform. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116332

PostgreSQL portal setup use-after-free executes arbitrary code

Use after free in PostgreSQL portal setup allows an object creator to execute arbitrary code as the operating system user running the database, via running user-defined code during planning or executor startup that closes the portal currently being prepared. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-116336

PostgreSQL REINDEX CONCURRENTLY does not block DROP INDEX during index functions

Operation on a dropped index in PostgreSQL REINDEX CONCURRENTLY allows an object creator to execute arbitrary code as the operating system user running the database, via an index expression that issues DROP INDEX. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

CVSS 3.1 · 8.8 High EPSS n/a KEV · Not listed
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CVE-2026-64523

net/handshake: Take a long-lived file reference at submit

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Take a long-lived file reference at submit handshake_nl_accept_doit() needs the file pointer backing req->hr_sk->sk_socket to survive the window between handshake_req_next() and the subsequent FD_PREPARE() and get_file(). The submit-side sock_hold() does not provide that. sk_refcnt keeps struct sock alive, but struct socket is owned by sock->file: when the consumer fputs the last file reference, sock_release() tears the socket down regardless of any sock_hold. Add an hr_file pointer to struct handshake_req and acquire an explicit reference on sock->file during handshake_req_submit(). handshake_complete() and handshake_req_cancel() release the reference on the completion-bit-winning path. The submit error path must also release the file reference, but after rhashtable insertion a concurrent handshake_req_cancel() can discover the request and race the error path. Gate the error-path cleanup -- sk_destruct restoration, fput, and request destruction -- with test_and_set_bit(HANDSHAKE_F_REQ_COMPLETED), the same serialization handshake_complete() and handshake_req_cancel() already use. When cancel has already claimed ownership, the submit error path returns without touching the request; socket teardown handles final destruction. The accept-side dereferences are not yet retargeted; that change comes in the next patch.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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CVE-2026-124917

Sandbox escape due to use-after-free in the Widget: Gtk component

Sandbox escape due to use-after-free in the Widget: Gtk component. This vulnerability was fixed in Firefox 160, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
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CVE-2026-124861

Sandbox escape due to use-after-free in the Audio/Video: cubeb component

Sandbox escape due to use-after-free in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, Firefox ESR 153.7, Thunderbird 160, and Thunderbird 153.7.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
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CVE-2026-64564

sctp: don't free the ASCONF's own transport in DEL-IP processing

In the Linux kernel, the following vulnerability has been resolved: sctp: don't free the ASCONF's own transport in DEL-IP processing sctp_process_asconf() caches the transport the ASCONF chunk is processed against in asconf->transport (== chunk->transport, set once in sctp_rcv()). For an ASCONF located through its Address Parameter by __sctp_rcv_asconf_lookup(), that cached transport corresponds to the Address Parameter, which need not be the packet's source address. sctp_process_asconf_param() rejects a DEL-IP for the packet source address (ADDIP D8, SCTP_ERROR_DEL_SRC_IP), but nothing protects asconf->transport. A single ASCONF can therefore carry, in order: [Address Parameter L] [DEL-IP L] [DEL-IP 0.0.0.0] where L differs from the source. The DEL-IP for L passes the D8 check and calls sctp_assoc_rm_peer() on the transport that asconf->transport still points at, freeing it (RCU-deferred). The following wildcard DEL-IP then reuses the now-dangling asconf->transport in sctp_assoc_set_primary() and sctp_assoc_del_nonprimary_peers(): set_primary() dereferences the freed transport (->ipaddr, ->state) and plants the dangling pointer into asoc->peer.primary_path / active_path, and del_nonprimary_peers(), keeping only the pointer that is no longer on the list, removes every real transport, leaving the association with a transport_count of 0 and primary_path/active_path pointing at freed memory. Reject a DEL-IP that targets the transport the ASCONF is being processed against, mirroring the existing source-address guard, so the wildcard branch can never reuse a freed transport.

CVSS 3.1 · 9.8 Critical EPSS 1.4% KEV · Not listed
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CVE-2026-126861

chromium-browser: chromium-browser: Arbitrary code execution via crafted HTML page

Use after free in Media in Google Chrome on on Android prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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