CVE-2025-58767VulnerabilityPublished 18 Sep 2026Updated 10 Nov 2026

SUSE · Security update for ruby3.4

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2025-58767· Low 1.2

Not known to be exploited · CVSS 1.2 Low · fixed in SUSE package updates : update SUSE when convenient.

Data as of 10 Nov 2026, 20:06 UTC

CVSS 4.0 base score

1.2Low

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 3.4.10

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

Base metrics

Attack Vector: Local
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: Unreported

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: Unreported: Based on threat intelligence sources each of the following must apply: · No knowledge of publicly available proof-of-concept · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

Description

This update for ruby3.4 fixes the following issues: - CVE-2025-58767: denial of service when parsing XML containing multiple XML declarations (bsc#1250016). - CVE-2026-27820: insufficient checks in `zstream_buffer_ungets` can lead to a buffer overflow (bsc#1259239). - CVE-2026-41316: erb: @_init deserialization guard bypass via def_module / def_method / def_class (bsc#1262441). - CVE-2026-42258: ruby: Net:IMAP: IMAP Command Injection via Symbol Arguments (bsc#1268011). - CVE-2026-47240: Net:IMAP: Command Injection via non-synchronizing literal in "raw" argument (bsc#1268337). - CVE-2026-47241: Net:IMAP: Denial of Service via incomplete raw argument validation (bsc#1268338). - CVE-2026-47242: Net:IMAP: Command Injection via ID and ENABLE command arguments (bsc#1268339). - CVE-2025-61594: rubygem-uri: URI concatenation with the plus operator can cause credential disclosure (bsc#1255833). Changes for ruby3.4: - Update to 3.4.10. - Update to 3.4.9: - Bug #21715: Miscompilation on x86-64-v2 due to undefined behavior in search_nonascii in string.c - Ruby - Ruby Issue Tracking System - Bug #21787: IO::Buffer Integer Overflow in Range Validation Leads to Out-of-Bounds Memory Access - Ruby - Ruby Issue - Bug #21757: Splatted args array is mutated when passing unexpected kwargs - Ruby - Ruby Issue Tracking System - Bug #21326: Instruction generation differences between parse.y and prism for def a(x, ...); b(...); end - Ruby - Ruby Issue - Bug #21814: 0.pow(2,-9999999999999999990) should be zero - Ruby - Ruby Issue Tracking System - Bug #21819: A Data object should be frozen even if it has no members - Ruby - Ruby Issue Tracking System - Bug #21811: Fix underflow in Array#pack - Ruby - Ruby Issue - Bug #21838: Rails seeing degradation (20% slowdown) related to Revision 079ef92b "Implement global allocatable slots and empty pages" (from Sep 5 2024) - Ruby - Ruby Issue Tracking System - Bug #21931: GC Crash in String#% (backport 726205b354d1068147719fb42e1de743f1838ef1) - Ruby - Ruby Issue - Bug #21860: Process.fork: the child may deadlock on th->interrupt_lock in threadptr_interrupt_exec_cleanup - Ruby - Ruby Issue Tracking System - Bug #21873: UnboundMethod#== returns false for methods from included/extended modules - Ruby - Ruby Issue Tracking System - Update to 3.4.8: - Bug #21629: Ruby-3.4.7 prints -Wdefault-const-init-field-unsafe warnings on clang / llvm 21 - Ruby - Ruby Issue Tracking System - Bug #21626: Backport WASI setjmp handler memory leak fixes - Ruby - Ruby Issue Tracking System - Bug #21631: Backport openssl gem bugfix releases - Ruby - Ruby Issue Tracking System - Bug #21632: Backport REXML CVE-2025-58767 fix (bsc#1250016) - - Bug #21644: Stack consistency error for the newrange INSN peephole optimization with chilled string - Ruby - Ruby Issue - Bug #21668: Improve performance of UnicodeNormalize.canonical_ordering_one - Ruby - Ruby Issue - Bug #21638: Ractor-local $DEBUG is not marked - Ruby - Ruby - Bug #21652: Marshal#dump documentation out-of-date/unclear regarding Data class - Ruby - Ruby Issue Tracking System - Bug #13671: Regexp with lookbehind and case-insensitivity raises RegexpError only on strings with certain characters - - Bug #21625: Allow IO#wait_readable together with IO#ungetc even in text mode - Ruby - Ruby Issue Tracking System - Bug #21671: Rails CI raises Assertion Failed: rbimpl_rstring_getmem:RB_TYPE_P(str, RUBY_T_STRING): actual type: 26 with "-DENABLE_PATH_CHECK=0 -DRUBY_DEBUG=1" enabled - - Update next stable version to 4.0 from 3.5 by hsbt . Pull Request #15146 - Bug #21679: Segfault when ruby calls pthread_detach in rb_getnameinfo - Ruby - Ruby Issue Tracking System - Bug #21694: Crash when looking up super method from BasicObject - Ruby - Ruby Issue Tracking System - Bug #21707: Destructuring assignment of SimpleDelegator wrapped array bug with YJIT - Ruby - Ruby Issue Tracking System - Bug #21265: Crash when proc from Symbol#to_proc called outside refinement scope - Ruby - Ruby Issue Tracking System - Bug #21703: RUBY_CRASH_REPORT does not work when shelling out in some cases - Ruby - Ruby Issue Tracking System - Bug #21666: Math.lgamma(-1).should == [infinity_value, 1] fails with Fedora glibc-2.42.9000-8.fc44 - Ruby - Ruby Issue Tracking System - Bug #21655: segfault when building 3.3.10 with GCC 15.2.1, regression from 3.3.9 - Ruby - Ruby Issue Tracking System - Bug #21680: Integer#digits bug starting from Ruby 3.1 - Ruby - - Bug #21705: UNIXServer.open(nil) segfaults on Windows - Ruby - - Bug #21648: [prism] ruby crashes for for * in [10]; end - Ruby - Bug #21187: Strings concatenated with \ getting frozen with literal hashes (PRISM only) - Ruby - Ruby Issue Tracking System - Bug #21772: ruby: YJIT has panicked StackOpnd(1) should be a heap object, but was ImmSymbol for VALUE(137647867319760) - - Bug #21446: StackOverflow when changing visibility in reopened refinement - Ruby - Ruby Issue Tr

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