[From nobody Thu Oct 15 14:09:14 2026 Received: (at submit) by bugs.debian.org; 24 Sep 2026 06:37:42 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-111.0 required=4.0 tests=ALL_TRUSTED,BAYES_00, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FOURLA, FROMDEVELOPER,SPF_HELO_NONE,SPF_PASS,USER_IN_DKIM_WELCOMELIST, XMAILER_REPORTBUG autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 46; hammy, 150; neutral, 107; spammy, 0. spammytokens: hammytokens:0.000-+--Hx-spam-relays-external:sk:stravin, 0.000-+--H*RT:sk:stravin, 0.000-+--Hx-spam-relays-external:311, 0.000-+--H*RT:311, 0.000-+--H*RT:108 Return-path: <carnil@debian.org> Received: from stravinsky.debian.org ([2001:41b8:202:deb::311:108]:36314) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <carnil@debian.org>) id 1x9d5S-008m1V-1h for submit@bugs.debian.org; Thu, 24 Sep 2026 06:37:42 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Date:Message-ID:Subject:To:From: Content-Transfer-Encoding:MIME-Version:Content-Type:Reply-To:Cc:Content-ID: Content-Description:In-Reply-To:References; bh=7hdEt6d1LX1j8336tVXwYuxhnCRHBnkdDTPCgPwkoDA=; b=aXV8yb+3cWFpJx9h3xqnAqYO56 fRmiKmKfiVELEp5ICm9FGvhFFwEMByvu2EZ/B8qqfWgt2q2zrBKCQh/wxpde6GtyRoNbzfAIBMPx3 f1KgHZ0w5mhvdwGMjl7JxTy+iNwQatirHd7fJl8/L4KGUSQQuemhsiy6K50zBatnv//bQiPbyvUYs QanpcFOF6VWbo4tluY+cHs3hkE8fIdAlnB9nrztpfMuRUjJLD59ZMcrIldrd6GOvylLpmrfNAe2Fg 6DUQFjHcuTQ19Kq1LBwPLlsGcEBUHP61bSJkFdWdVsTOXAewJQzkwvsyUBxXMPYN/ka07nDjwlgc7 RFeRg0Xg==; Received: from authenticated-user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <carnil@debian.org>) id 1x9d5Q-004Kwe-0f for submit@bugs.debian.org; Thu, 24 Sep 2026 06:37:41 +0000 Received: from eldamar.lan (localhost [IPv6:::1]) by eldamar.lan (Postfix) with ESMTP id 85CE3DC039F for <submit@bugs.debian.org>; Thu, 24 Sep 2026 08:37:39 +0200 (CEST) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Salvatore Bonaccorso <carnil@debian.org> To: Debian Bug Tracking System <submit@bugs.debian.org> Subject: jackson-core: CVE-2026-89425 Message-ID: <179023185950.545144.159758584205176391.reportbug@eldamar.lan> X-Mailer: reportbug 13.2.0+nmu1 Date: Thu, 24 Sep 2026 08:37:39 +0200 X-Debian-User: carnil Delivered-To: submit@bugs.debian.org Source: jackson-core Version: 2.14.1-2 Severity: important Tags: security upstream X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org> Control: found -1 2.14.1-2~deb13u1 Hi, The following vulnerability was published for jackson-core. CVE-2026-89425[0]: | UTF8DataInputJsonParser._reportInvalidToken() in FasterXML jackson- | core builds the offending-token text for its error message by | appending Java identifier characters to a StringBuilder in a loop | that has no upper bound. Unlike the three sibling parser | implementations, including UTF8StreamJsonParser, it never consults | ErrorReportConfiguration.getMaxErrorTokenLength() (default 256). A | malformed token supplied to a parser created through | JsonFactory.createParser(DataInput) is therefore accumulated in | full. No StreamReadConstraints setting mitigates this: | maxDocumentLength cannot be applied to DataInput sources at all, and | maxStringLength does not cover this path because the accumulation | bypasses ReadConstrainedTextBuffer. The reporter measured a | 20,000,109-character exception message from a 20-million-character | malformed token on the DataInput path, against 367 characters for | identical input on the InputStream path. Scaling the payload drives | the StringBuilder, which also incurs byte-to-char expansion and | internal array doubling, to many times the raw payload size and can | trigger OutOfMemoryError for the whole JVM. UTF8DataInputJsonParser | was introduced in 2.8.0 together with createParser(DataInput); | releases before 2.8.0 do not contain the affected class. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-89425 https://www.cve.org/CVERecord?id=CVE-2026-89425 [1] https://github.com/FasterXML/jackson-core/security/advisories/GHSA-7hhh-6rmp-j9qf [2] https://github.com/FasterXML/jackson-core/pull/1698 Regards, Salvatore ]